Develop Reference

MethodAccessException was unhandled

ok I have a WPF program that works on one computer but not the another. on the other one, I get this MethodAccessException was unhandled
it is when the problem calls NotifyPropertyChanged():
public abstract class NotifyChanged: INotifyPropertyChanged {
#region INotifyPropertyChanged
/// <summary>
/// PropertyChanged can be triggered whenever a Property changes value.
/// It is also available for classes which inherit from
MachineComponent.
/// </summary>
public virtual event PropertyChangedEventHandler PropertyChanged;
/// <summary>
/// NotifyPropertyChanged can be called explicitly, by sending the name
of the property as a string,
/// or implicitly, by calling it without parameters from the Property
that changes.
/// </summary>
/// <param name="info"></param>
[System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Design",
"CA1026:DefaultParametersShouldNotBeUsed" )]
protected void NotifyPropertyChanged( [CallerMemberName] string info = "none passed" ) {
if ( PropertyChanged != null ) {
PropertyChanged( this, new PropertyChangedEventArgs( info ) );
}
}
#endregion
anyone know why ?
I am told this code come from a Microsoft site
Update.. I am adding the full error message. now this is a run time error message
full error message:
System.MethodAccessException was unhandled
HResult=-2146233072
Message=Attempt by method
'Moxtek.XRF.Core.LocationViewModel.set_LocationName(System.String)' to
access method
'Moxtek.Common.Abstract.NotifyChanged.NotifyPropertyChanged(System.String)'
failed.
Source=Moxtek.XRF.Core
StackTrace:
at Moxtek.XRF.Core.LocationViewModel.set_LocationName(String value) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationViewModel.cs:line 41
at Moxtek.XRF.Core.LocationViewModel..ctor(XrfLocationSet location, LocationItemViewModel locationItem, MeasurementRecipeItemViewModel recipeItem, IDataObject`1 locationData, IServiceLocator services) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationViewModel.cs:line 12
at Moxtek.XRF.Core.LocationItemViewModel.GetItems() in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationItemViewModel.cs:line 36
at Moxtek.XRF.Core.LocationItemViewModel..ctor(IDataObject`1 locationData, MeasurementRecipeItemViewModel recipeItem, IServiceLocator services) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\MeasurementRecipeViewModels\LocationItemViewModel.cs:line 14
at Moxtek.XRF.Core.XrfViewModel..ctor(ChartingViewModel chart, IServiceLocator services) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.Core\ViewModels\XrfViewModel.cs:line 29
at Moxtek.XRF.WPF.App.OnStartup(StartupEventArgs e) in C:\Users\lolsen\Source\XRF\Moxtek.XRF.WPF\App.xaml.cs:line 46
at System.Windows.Application.<.ctor>b__1_0(Object unused)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at Moxtek.XRF.WPF.App.Main()
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
at System.Activator.CreateInstance(ActivationContext activationContext)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:

VS2015 XAML Designer always System.UnauthorizedAccessException

I having VS2015 and experiencing XAML Designer error of System.UnauthorizedAccessException. I am running on Windows 10 build 10586.
I don't experience the error when I deleted some of the files from the Project. Once I build the project, the UWP app running and the debugger and XAML Designer start to throw error like below:
System.UnauthorizedAccessException
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type)
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName)
at System.Runtime.DesignerServices.WindowsRuntimeDesignerContext.GetType(String typeName)
at Microsoft.VisualStudio.DesignTools.Utility.WindowsRuntimeService.WindowsRuntimeContext.GetTypeFromWindowsRuntimeDesignerContext(String name)
at Microsoft.VisualStudio.DesignTools.Utility.WindowsRuntimeService.GetRuntimeType(String typeFullName)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.EmitContext.GetTypeFromRuntimeService(Type type)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.EmitContext.GetPlatformTypeInternal(Type type, Func`2 getPlatformType)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.EmitContext.GetPlatformTypeInternal(Type type)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.EmitContext.GetPlatformType(Type type)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.MockTypeGenerator.GetKnownType(Type type)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.MockTypeGenerator.DefineType(Type type)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockTypes.MockTypeGenerator.MockType(Type type)
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockType.InitializeMockType()
at Microsoft.VisualStudio.DesignTools.XamlDesigner.Metadata.MockType.get_RuntimeType()
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.ProjectContextType.InitializeClass()
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.MemberCollection.get_AttachedPropertyIndex()
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.MemberCollection.CreateAttachedProperty(String propertyName, MemberKey& key)
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.MemberCollection.CreateMember(MemberType memberTypes, String memberName, MemberKey& key)
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.MemberCollection.TryGetCachedMember(MemberType memberTypes, String memberName, Boolean create, IMember& member)
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.MemberCollection.GetMember(MemberType memberTypes, String memberName, MemberAccessTypes access)
at Microsoft.VisualStudio.DesignTools.Platform.Metadata.ProjectContextType.GetMember(MemberType memberTypes, String memberName, MemberAccessTypes access)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyMerger.GetPropertiesFromSelection(IEnumerable`1 selectedSceneNodes, Boolean includeStatics)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyMerger.GetMergedProperties(IEnumerable`1 selectedSceneNodes, Boolean includeStatics)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyInspector.PropertyInspectorModel.GetPropertiesToShowInternal(IReadOnlyList`1 selectedObjects)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyInspector.PropertyInspectorModel.GetRenderedProperties(IReadOnlyList`1 selectedObjects)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyInspector.PropertyInspectorModel.UpdateOnSelectionChanged(Boolean forceUpdate, Boolean shouldCloseOpenTransactions, Boolean clearAddedProperties)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyInspector.PropertyInspectorModel.UpdateSelectionCore(Boolean forceUpdate, Boolean shouldCloseOpenTransactions, Boolean clearAddedProperties)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyInspector.PropertyInspectorModel.UpdateSelection(Boolean forceUpdate, Boolean shouldCloseOpenTransactions, Boolean clearAddedProperties)
at Microsoft.VisualStudio.DesignTools.Designer.UI.PropertyInspector.PropertyInspectorModel.PropertyManager_MultiplePropertyReferencesChanged(Object sender, MultiplePropertyReferencesChangedEventArgs args)
at Microsoft.VisualStudio.DesignTools.Designer.Properties.PropertyManager.FireAllPropertyChangedEvents(SceneUpdatePhaseEventArgs args)
at Microsoft.VisualStudio.DesignTools.Designer.Properties.PropertyManager.SelectionManager_LateActiveSceneUpdatePhase(Object sender, SceneUpdatePhaseEventArgs args)
at Microsoft.VisualStudio.DesignTools.Designer.ViewModel.SceneUpdatePhaseEventHandler.Invoke(Object sender, SceneUpdatePhaseEventArgs e)
at Microsoft.VisualStudio.DesignTools.Designer.Selection.SelectionManager.FireLateActiveSceneUpdatePhase(SceneUpdatePhaseEventArgs args)
at Microsoft.VisualStudio.DesignTools.Designer.View.SceneViewUpdateScheduleTask.UpdateLate()
at Microsoft.VisualStudio.DesignTools.Utility.Scheduler.ScheduleTask.Update()
at Microsoft.VisualStudio.DesignTools.Utility.Scheduler.SchedulingService.DispatchTasksAtPriority(DispatcherPriority priority)
at Microsoft.VisualStudio.DesignTools.Utility.Scheduler.SchedulingService.DispatcherToken.Dispatch(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.RunApplication()
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.DesignProcessViewProvider.AppContainerDesignerProcessRun(String[] activationContextArgs)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.DesignProcessViewProvider.<>c__DisplayClass3_0.<applicationView_Activated>b__0()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
I am not able to see the properties of the element Grid even the syntax as simple as below:
<Page
x:Class="mstesting.BlankPage1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:mstesting"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
</Grid>
</Page>
I already enabled Developer Mode at the Windows 10.

Update to VS2015 Update 1 definitely fixed up this issue.

From the error message, the user does not have the permission. You could let the application pool under a suitable account (such as LocalSystem).
Here is a Link about this quesiton.

Uninitialized static object called simultaneously by two threads

I have a couple of objects, each of them runs on its own thread, almost simultaneously those objects call another static object which have not been initialized, when I launch the RunWorkerAsyc function, the event RunWorkerCompleted returns with the error
System.Reflection.TargetInvocationException was unhandled by user code
Message: An exception occurred during the operation, making the result invalid. Check InnerException for exception details.
If I only run one of the objects which use these uninitialized, the program works perfectly.
all of this is happening on Design mode, So I don't know how I could design my static class to avoid this. Were already tried the singleton approach, and we still get the same problem.
Any Ideas?
Stack trace
System.Reflection.TargetInvocationException was unhandled by user code
Message=An exception occurred during the operation, making the result invalid. Check InnerException for exception details.
Source=System
StackTrace:
at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
at System.ComponentModel.RunWorkerCompletedEventArgs.get_Result()
at HauxLifeSupport.SQL.SQLQueryRunnerBase._QueryWorker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e) in E:\NET\HLSToolKit2\HLSToolkitSQL\SQLQueryRunner.cs:line 83
at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.SafeNativeMethods.MessageBox(HandleRef hWnd, String text, String caption, Int32 type)
at System.Windows.Forms.MessageBox.ShowCore(IWin32Window owner, String text, String caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton, MessageBoxOptions options, Boolean showHelp)
at System.Windows.Forms.MessageBox.Show(String text)
at HauxLifeSupport.SQL.SQLQueryRunnerBase._QueryWorker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e) in E:\NET\HLSToolKit2\HLSToolkitSQL\SQLQueryRunner.cs:line 78
at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ThreadContext.LocalModalMessageLoop(Form form)
InnerException: System.IO.FileNotFoundException
Message=Could not load file or assembly 'HLSToolkitCommon, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Das System kann die angegebene Datei nicht finden.
Source=HLSToolkitSQL
FileName=HLSToolkitCommon, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
FusionLog==== Pre-bind state information ===
LOG: User = HAUX1\garcia_luis
LOG: DisplayName = HLSToolkitCommon, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
(Fully-specified)
LOG: Appbase = file:///C:/Program Files (x86)/Microsoft Visual Studio 10.0/Common7/IDE/
LOG: Initial PrivatePath = NULL
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe.Config
LOG: Using host configuration file:
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: The same bind was seen before, and was failed with hr = 0x80070002.
StackTrace:
at HauxLifeSupport.SQL.SQLQueryRunnerBase._QueryWorker_DoWork(Object sender, DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
InnerException:

How can I analyze an exception like this?

When debugging my application I get the following exception.
I know it has to do with an update method for an INotify property, but how to find out exactly what's going wrong. I can't get a decent stack call.
The complete exception info is:
System.Windows.Markup.XamlParseException was unhandled
HResult=-2146233087
Message='The invocation of the constructor on type 'PcgTools.MainWindow' that matches the specified binding constraints threw an exception.' Line number '4' and line position '9'.
Source=PresentationFramework
LineNumber=4
LinePosition=9
StackTrace:
at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
at System.Windows.Application.LoadBamlStreamWithSyncInfo(Stream stream, ParserContext pc)
at System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties)
at System.Windows.Application.DoStartup()
at System.Windows.Application.<.ctor>b__1(Object unused)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run()
at PcgTools.App.Main() in c:\PcgTools\nodes\KorgKronosTools\obj\Debug\App.g.cs:line 0
InnerException: System.ArgumentOutOfRangeException
HResult=-2146233086
Message=Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
Source=mscorlib
ParamName=index
StackTrace:
at System.Collections.Generic.List`1.get_Item(Int32 index)
at PcgTools.Model.Common.Synth.Timbre.get_UsedProgram() in c:\PcgTools\nodes\KorgKronosTools\Model\Common\Synth\Timbre.cs:line 137
at PcgTools.Model.Common.Synth.Timbre.RefillColumns() in c:\PcgTools\nodes\KorgKronosTools\Model\Common\Synth\Timbre.cs:line 612
at PcgTools.Model.Common.Synth.Timbre.OnPcgRootPropertyChanged(Object sender, PropertyChangedEventArgs e) in c:\PcgTools\nodes\KorgKronosTools\Model\Common\Synth\Timbre.cs:line 574
at System.ComponentModel.PropertyChangedEventHandler.Invoke(Object sender, PropertyChangedEventArgs e)
at Common.Mvvm.ObservableObject.OnPropertyChanged(String propertyName, Boolean verifyPropertyName) in c:\PcgTools\nodes\Common\Mvvm\ObservableObject.cs:line 47
at PcgTools.Model.Common.Synth.Memory.set_ReadingFinished(Boolean value) in c:\PcgTools\nodes\KorgKronosTools\Model\Common\Synth\Memory.cs:line 74
at PcgTools.Model.Common.File.KorgFileReader.Read(String fileName) in c:\PcgTools\nodes\KorgKronosTools\Model\Common\File\KorgFileReader.cs:line 116
at PcgTools.ViewModels.MainViewModel.ReadAndShowFile(String fileName, Boolean checkAutoLoadMasterFileSetting) in c:\PcgTools\nodes\KorgKronosTools\ViewModels\MainViewModel.cs:line 367
at PcgTools.ViewModels.MainViewModel.HandleAppArguments() in c:\PcgTools\nodes\KorgKronosTools\ViewModels\MainViewModel.cs:line 1030
at PcgTools.MainWindow..ctor() in c:\PcgTools\nodes\KorgKronosTools\MainWindow.xaml.cs:line 221
InnerException:

This kind of message apeears when XAML initialization triggers erroneous initialization code (at line 4 in MainWindow.xaml file). The real cause is described in inner exception. It indicates that in Timbre.cs:line 137 a list was accessed with an invalid index.
Since, it shows line number for that file, I assume you have its source code, at least in form of a .pdb file. Than you can set a break-point in there to see what's going on.
An excellent tool for tracking such unclear exceptions is IntelliTrace, but it's only available for VS Ultimate.

WPF ProgressBar - TargetParameterCountException

I am making my first WPF application, where I use the Youtube .NET API to upload a video to Youtube using the ResumableUploader.
This ResumableUploader works asynchronously and provides an event AsyncOperationProgress to periodically report its progress percentage.
I want a ProgressBar that will display this progress percentage. Here is some of the code I have for that:
void BtnUpload_Click(object sender, RoutedEventArgs e) {
// generate video
uploader = new ResumableUploader();
uploader.AsyncOperationCompleted += OnDone;
uploader.AsyncOperationProgress += OnProgress;
uploader.InsertAsync(authenticator, newVideo.YouTubeEntry, new UserState());
}
void OnProgress(object sender, AsyncOperationProgressEventArgs e) {
Dispatcher.BeginInvoke((SendOrPostCallback)delegate {
PgbUpload.Value = e.ProgressPercentage;
}, DispatcherPriority.Background, null);
}
Where PgbUpload is my progress bar and the other identifiers are not important for the purpose of this question.
When I run this, OnProgress will be hit a few times, and then I will get a TargetParameterCountException. I have tried several different syntax for invoking the method asynchronously, none of which worked. I am sure the problem is the delegate because if I comment it out, the code works fine (but the ProgressBar isn't updated of course).
Here is the Exception Detail (partially in French):
System.Reflection.TargetParameterCountException
was unhandled Message=Nombre de
paramètres incorrects.
Source=mscorlib StackTrace:
à System.Reflection.RuntimeMethodInfo.Invoke(Object
obj, BindingFlags invokeAttr, Binder
binder, Object[] parameters,
CultureInfo culture, Boolean
skipVisibilityChecks)
à System.Delegate.DynamicInvokeImpl(Object[]
args)
à System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Boolean
isSingleParameter)
à System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object
source, Delegate callback, Object
args, Boolean isSingleParameter,
Delegate catchHandler)
à System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate
callback, Object args, Boolean
isSingleParameter, Delegate
catchHandler)
à System.Windows.Threading.DispatcherOperation.InvokeImpl()
à System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object
state)
à System.Threading.ExecutionContext.runTryCode(Object
userData)
à System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode
code, CleanupCode backoutCode, Object
userData)
à System.Threading.ExecutionContext.RunInternal(ExecutionContext
executionContext, ContextCallback
callback, Object state)
à System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback
callback, Object state)
à System.Windows.Threading.DispatcherOperation.Invoke()
à System.Windows.Threading.Dispatcher.ProcessQueue()
à System.Windows.Threading.Dispatcher.WndProcHook(IntPtr
hwnd, Int32 msg, IntPtr wParam, IntPtr
lParam, Boolean& handled)
à MS.Win32.HwndWrapper.WndProc(IntPtr
hwnd, Int32 msg, IntPtr wParam, IntPtr
lParam, Boolean& handled)
à MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object
o)
à System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Boolean
isSingleParameter)
à System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object
source, Delegate callback, Object
args, Boolean isSingleParameter,
Delegate catchHandler)
à System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate
callback, Object args, Boolean
isSingleParameter, Delegate
catchHandler)
à System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority
priority, TimeSpan timeout, Delegate
method, Object args, Boolean
isSingleParameter)
à System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority
priority, Delegate method, Object arg)
à MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr
lParam)
à MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG&
msg)
à System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame
frame)
à System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame
frame)
à System.Windows.Threading.Dispatcher.Run()
à System.Windows.Application.RunDispatcher(Object
ignore)
à System.Windows.Application.RunInternal(Window
window)
à System.Windows.Application.Run(Window
window)
à System.Windows.Application.Run()
à WpfApplication3.App.Main() dans h:\razor\documents\visual studio
2010\Projects\WpfApplication3\WpfApplication3\obj\x86\Debug\App.g.cs:ligne
0
à System.AppDomain._nExecuteAssembly(Assembly
assembly, String[] args)
à System.AppDomain.ExecuteAssembly(String
assemblyFile, Evidence
assemblySecurity, String[] args)
à Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
à System.Threading.ThreadHelper.ThreadStart_Context(Object
state)
à System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback
callback, Object state)
à System.Threading.ThreadHelper.ThreadStart()
InnerException:
Thanks for any help.
Edit: I just found out that if I don't use the Dispatcher and just call set the value directly, it works fine! Is OnProgress called on main UI thread? How can that be?

The uploader (or any async component) can sync with the thread that created it. There are probably a variety of ways to do this, but the one I've seen before goes like this:
public class ResumableUploader {
private SynchronizationContext _syncContext;
public event EventHandler<ProgressChangedEventArgs> OnProgressChanged;
public ResumableUploader() {
_syncContext = SynchronizationContext.Current; //Think of this as the current thread
}
private ReportProgressChanged(int progress) {
if(OnProgressChanged != null) {
_syncContext.Send(s => { OnProgressChanged(this, new ProgressChangedEventArgs(progress)); }, null); //s is any data you want to pass in, here it is unused
}
}
}
Or, slightly more flexible but also more complex for the user/client would be if the user/client supplied the SynchronizationContext at instance creation:
public ResumableUploader(SynchronizationContext syncContext)