Develop Reference

How to fix TFS build issue "ResolveComReference" task failed unexpectedly process can't access file System.Windows.Interactivity.resources.dll'

I have a WPF solution and I'm using Visual Studio Team Services with TFVC for source control. I've created an automated build, however, the build will fail (sporadically) with the following error:
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Microsoft.Common.targets (2015, 0)
The "ResolveComReference" task failed unexpectedly.
System.IO.IOException: The process cannot access the file 'C:\a\bin\es\System.Windows.Interactivity.resources.dll' because it is being used by another process.
Server stack trace:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
at Microsoft.Build.Tasks.Copy.CopyFileWithLogging(FileState sourceFileState, FileState destinationFileState)
at Microsoft.Build.Tasks.Copy.DoCopyWithRetries(FileState sourceFileState, FileState destinationFileState, CopyFileWithState copyFile)
at Microsoft.Build.Tasks.NativeMethods.QueryPathOfRegTypeLib(Guid& clsid, Int16 majorVersion, Int16 minorVersion, Int32 lcid)
at Microsoft.Build.Tasks.ComReference.GetPathOfTypeLib(TaskLoggingHelper log, Boolean silent, TYPELIBATTR& typeLibAttr, String& typeLibPath)
at Microsoft.Build.Tasks.ResolveComReference.ConvertAttrReferencesToComReferenceInfo(List`1 projectRefs, ITaskItem[] typeLibAttrs)
at Microsoft.Build.Tasks.ResolveComReference.Execute()
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Microsoft.Build.Framework.ITask.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__1.MoveNext()
When this does occur.. I can queue another build and it will pass. Does anyone know why this may be happening and how it can be fixed?

TransactionAutoComplete set to false cannot be used with operations on callback contracts

A normal HTTP WCF Service is throwing this error when trying to connect to a legacy NetTCP binding. I want to be able to flow the transaction to the service and have that enabled. I am not using a duplex contract so why is it even mentioning a 'callback' contract in the error message?
Please just say if you need to see some more code, but I'll take any suggestions right now!
** the error is thrown when it's doing a ChannelFactory.CreateChannel()
The operation 'XService' on callback contract 'IXService' is configured with TransactionAutoComplete set to false. TransactionAutoComplete set to false cannot be used with operations on callback contracts.
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at IXService.Add(Int32 id, Int32 createdById, String note, Int32 productTypeId, Int32 noteTypeId)
at XService.Add(Int32 id, Int32 createdById, String note, Int32 productTypeId, Int32 noteTypeId)

I had the same problem.
I was starting a service programmaticaly all along with the configuration (base address, binding, endpoint,...).
I ended up exporting all configuration to the config file and it worked.

WPF Designer Fails to Load

Using Visual Studio 2012 on Win7.
I recently converted a WPF application to a WPF user control by replacing the XAML flags <Window> with <UserControl> and changing the resources to <Control.Resources>. I also altered the codebehind to inherit from UserControl just to be safe, but at some point this broke the application and I can no longer view it in Design mode. All I get is this nonsense:
System.NullReferenceException
Object reference not set to an instance of an object.
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.WaitForCompletion(NestedCallContext nestedCallContext, BlockingCall call, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalOutSynchronous(Action action, Int32 targetApartmentId, WaitHandle aborted, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalOut(Action action, Int32 targetApartmentId, WaitHandle aborted, CallSynchronizationMode syncMode, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalOut[TValue](RemoteHandle`1 targetObject, Action action, CallSynchronizationMode syncMode)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalOut[TResult,TValue](RemoteHandle`1 targetObject, Func`2 func, CallSynchronizationMode syncMode)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalDesignerService.CreateDesignerImpl(IHostSourceItem item, IHostTextEditor editor, RemoteCancellationToken remoteCancelToken)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalDesignerService.<>c__DisplayClass12.<Microsoft.Expression.DesignHost.IDesignerService.CreateDesigner>b__11(RemoteCancellationToken remoteToken)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalDesignerService.CallWithCancellation[TResult](CancellationToken cancelToken, Func`2 func)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalDesignerService.Microsoft.Expression.DesignHost.IDesignerService.CreateDesigner(IHostSourceItem item, IHostTextEditor editor, CancellationToken cancelToken)
at Microsoft.Expression.DesignHost.IsolatedDesignerService.IsolatedDesignerView.CreateDesignerViewInfo(CancellationToken cancelToken)
System.NullReferenceException
Object reference not set to an instance of an object.
Server stack trace:
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.WaitForCompletion(NestedCallContext nestedCallContext, BlockingCall call, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalIn(Action action, Int32 targetApartmentId)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalIn(IRemoteObject targetObject, Action action)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalIn[TResult](IRemoteObject targetObject, Func`1 func)
at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteDesignerService.Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteDesignerService.CreateDesigner(IRemoteHostSourceItem remoteItem, IRemoteHostTextEditor remoteEditor, IRemoteCancellationToken remoteToken)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteDesignerService.CreateDesigner(IRemoteHostSourceItem remoteItem, IRemoteHostTextEditor remoteEditor, IRemoteCancellationToken cancelToken)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalDesignerService.<>c__DisplayClass8.<CreateDesignerImpl>b__6(IRemoteDesignerService d)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.<>c__DisplayClass4`2.<MarshalOut>b__3()
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
System.NullReferenceException
Object reference not set to an instance of an object.
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.WaitForCompletion(NestedCallContext nestedCallContext, BlockingCall call, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalOutSynchronous(Action action, Int32 targetApartmentId, WaitHandle aborted, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalOut(Action action, Int32 targetApartmentId, WaitHandle aborted, CallSynchronizationMode syncMode, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalOut[TValue](RemoteHandle`1 targetObject, Action action, CallSynchronizationMode syncMode)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalOut[TResult,TValue](RemoteHandle`1 targetObject, Func`2 func, CallSynchronizationMode syncMode)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalHostProjectService.Microsoft.Expression.DesignHost.IHostProjectService.FindProject(FindProjectCriteria criteria, String criteriaValue)
at Microsoft.Expression.DesignSurface.Project.ProjectContextManager.FindApplicationProjectContext(XamlProjectContext requestingContext)
at Microsoft.Expression.DesignSurface.Project.XamlProjectContext.get_Application()
at Microsoft.Expression.DesignSurface.Documents.SceneDocument.GetApplicationDocument(IXamlProjectContext activeContext)
at Microsoft.Expression.DesignSurface.Documents.SceneDocument.get_ApplicationSceneDocument()
at Microsoft.Expression.DesignSurface.DocumentViewContext.CreateAndOpenView(ISourceItemContext sourceItem, CancellationToken cancelToken, Boolean activate, Boolean ensureOpenInHost, Boolean suppressUI)
at Microsoft.Expression.DesignSurface.DesignerService.CreateDesigner(IHostSourceItem item, IHostTextEditor editor, CancellationToken cancelToken)
at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteDesignerService.<>c__DisplayClass10.<>c__DisplayClass12.<Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteDesignerService.CreateDesigner>b__f(CancellationToken cancelToken)
at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteDesignerService.CallWithCancellation[TResult](IRemoteCancellationToken remoteToken, Func`2 func)
at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteDesignerService.<>c__DisplayClass10.<Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteDesignerService.CreateDesigner>b__e()
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.<>c__DisplayClass16`1.<MarshalIn>b__15()
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
System.NullReferenceException
Object reference not set to an instance of an object.
Server stack trace:
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.WaitForCompletion(NestedCallContext nestedCallContext, BlockingCall call, WaitHandle timeoutSignal)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalIn(Action action, Int32 targetApartmentId)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalIn(IRemoteObject targetObject, Action action)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalIn[TResult](IRemoteObject targetObject, Func`1 func)
at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteHostProjectService.Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteHostProjectService.FindProject(FindProjectCriteria criteria, String criteriaValue)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteHostProjectService.FindProject(FindProjectCriteria criteria, String criteriaValue)
at Microsoft.Expression.DesignHost.Isolation.Remoting.LocalHostProjectService.<>c__DisplayClass7.<Microsoft.Expression.DesignHost.IHostProjectService.FindProject>b__6(IRemoteHostProjectService ps)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.<>c__DisplayClass4`2.<MarshalOut>b__3()
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
System.NullReferenceException
Object reference not set to an instance of an object.
at MS.Internal.VSUtilities.GetBuildAction(IVsHierarchy hierarchy, UInt32 itemid)
at Microsoft.VisualStudio.ExpressionHost.HostServices.HostSourceItem.<>c__DisplayClass9.<Microsoft.Expression.DesignHost.IHostSourceItem.get_BuildItemType>b__7()
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.Invoke(Boolean waitingInExternalCall)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.InvokeCall(Call call)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.DirectInvoke(Action action, Int32 sourceApartmentId, Int32 targetApartmentId, Int32 originId, WaitHandle aborted)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.DirectInvokeInbound(Action action, Int32 targetApartmentId)
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.MarshalIn(Action action, Int32 targetApartmentId)
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.MarshalIn(IRemoteObject targetObject, Action action)
at Microsoft.VisualStudio.ExpressionHost.HostServices.HostSourceItem.Microsoft.Expression.DesignHost.IHostSourceItem.get_BuildItemType()
at Microsoft.Expression.HostUtility.Extensions.HostExtensions.<HasApplicationDocument>b__0(IHostSourceItem i)
at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.Expression.HostUtility.Extensions.HostExtensions.HasApplicationDocument(IHostProject hostProject)
at Microsoft.VisualStudio.ExpressionHost.HostServices.HostProjectService.FindApplicationProject(String projectPath)
at Microsoft.VisualStudio.ExpressionHost.HostServices.HostProjectService.<FindProjectsInternal>d__30.MoveNext()
at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source)
at Microsoft.VisualStudio.ExpressionHost.HostServices.HostProjectService.Microsoft.Expression.DesignHost.IHostProjectService.FindProject(FindProjectCriteria criteria, String criteriaValue)
at Microsoft.Expression.DesignHost.Isolation.Remoting.RemoteHostProjectService.<>c__DisplayClass1d.<Microsoft.Expression.DesignHost.Isolation.Remoting.IRemoteHostProjectService.FindProject>b__1c()
at Microsoft.Expression.DesignHost.Isolation.Remoting.ThreadMarshaler.<>c__DisplayClass16`1.<MarshalIn>b__15()
at Microsoft.Expression.DesignHost.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
After several googlings I located that this was a hot issue in 2012 but seems to have all but evaporated since then. But now I have nothing to go on! All my assemblies are 3.5+ (2.0 assemblies being a known issue back then) and I tried removing references but that didn't help either. I've made almost no code changes except instantiating an IoC in the control's load, but I also removed that code completely to no avail.
Anyone have any experience with this issue?
Edit - Please note, if I add a new UserControl with absolutely no customization and attempt to view it I get the same error.
Edit 2 - Tried "Attach to Process", it didn't do anything when I tried to reload the designer.

It's the bug of Visual Studio in creating incorrect intermediate files. Only rebuilding all projects may not solve the problem.
Try this,
Close the Visual Studio.
Delete the 'obj' folder.
Reopen Visual Studio.
Rebuild all projects.
Good luck !

One of the reason may be a binding of some your static resource to object which is temporary null
It may be for example binding to RowData.Row.Property where row is current row of another resource, which is null in Design Time.
The better way is Binding to RowData.Row which with Converter
public object Convert(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture)
{
if (value is MyContentType)
{
return (value as MyContentType).Property
}
else
{
return defaultValue // this value is valid for wpf control property
}
}
Other reason may be that some of your Converters or TemplateSelectors doesn't check incoming value for null
May be something else but i have no idea ....

Finally figured it out after noticing my other coworkers could see the control just fine.
The answer in this case appears to be that my visual studio was still at first release and required an update to version 4. So if all else fails and someone else runs into this issue, download the most recent visual studio patch and kick it off. I'm sure when it's done installing in a little while it'll work again.

"Value cannot be null" when invoking method decorated with [Autocomplete]

I have a Windows Forms application (.NET 3.5) which is deployed with the ClickOnce-technology and is used by approximately 50-100 concurrent users. They all target the same MS SQL database (SQL SERVER 2008 R2) which is hosted externally.
The application itself uses a "wrapper"-class to perform database queries. This class derives from ServicedComponent and decorates its methods with the [AutoComplete] attribute. Below is an example:
[Serializable]
[Transaction(TransactionOption.Required, Isolation=TransactionIsolationLevel.ReadCommitted)]
public class CTxGreenfee374Processor: ServicedComponent
{
public CTxGreenfee374Processor() { }
[AutoComplete]
internal Season SaveSeason(CallContext callContext, Season season)
{
return new PGreenfee374Processor().SaveSeason(callContext, season);
}
}
Most of the time this approach works like a charm. But numerous times a day following exception occur when this method gets invoked (of course there are similar methods with this exact problem):
System.ArgumentNullException
Value cannot be null.
Server stack trace:
at System.Threading.Monitor.Enter(Object obj)
at System.Data.ProviderBase.DbConnectionPool.TransactedConnectionPool.TransactionEnded(Transaction transaction, DbConnectionInternal transactedObject)
at System.Data.ProviderBase.DbConnectionPool.TransactionEnded(Transaction transaction, DbConnectionInternal transactedObject)
at System.Data.ProviderBase.DbConnectionInternal.CleanupConnectionOnTransactionCompletion(Transaction transaction)
at System.Data.SqlClient.SqlDelegatedTransaction.SinglePhaseCommit(SinglePhaseEnlistment enlistment)
at System.Transactions.TransactionStateDelegatedCommitting.EnterState(InternalTransaction tx)
at System.Transactions.TransactionStateDelegated.BeginCommit(InternalTransaction tx, Boolean asyncCommit, AsyncCallback asyncCallback, Object asyncState)
at System.Transactions.CommittableTransaction.Commit()
at System.EnterpriseServices.TransactionProxy.Commit(Guid guid)
at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
at System.EnterpriseServices.Thunk.Callback.DoCallback(Object otp, IMessage msg, IntPtr ctx, Boolean fIsAutoDone, MemberInfo mb, Boolean bHasGit)
at System.EnterpriseServices.ServicedComponentProxy.CrossCtxInvoke(IMessage reqMsg)
at System.EnterpriseServices.ServicedComponentProxy.Invoke(IMessage request)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at GOLFIT.BusinessProcess.Economics.CTxGreenfee374Processor.SaveSeason(CallContext callContext, Season season)
at GOLFIT.BusinessProcess.Economics.Greenfee374Processor.SaveSeason(CallContext callContext, Season season) in C:\Projekt\GOLFIT\DEVELOPMENTPROD374\BusinessProcess\GOLFIT.BusinessProcess.Economics\Greenfee374\Greenfee374Processor.cs:line 104
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at GOLFIT.BusinessProcess.Economics.Greenfee374Processor.SaveSeason(CallContext callContext, Season season)
at GOLFIT.WinGUI.Economics.FrmPrice374.Save(Boolean refresh).
As you can see the method SaveSeason in the CTxGreenfee374Processor class is mentioned in the exception. As far as I can see this is the last trace of code that I've written.
My only clue is that the exception has something to do with the [AutoComplete] attribute and/or the derived ServicedComponent class. This conclusion is based on that I've checked for invalid input parameters and that no code inside the method gets executed before the exception. And I assume that both ServicedComponent class and [AutoComplete] attribute performs som kind of logic before the method block executes.
I haven't been successful in recreating this exception when debugging, due to inconsequent occurrences of this exeption. So I've had to depend on logs from the production application.
If anyone got an idea regarding this problem it would be extremely appreciated!

Cannot access a disposed object - wcf client

I have a WCF client that I'm having problems with.
From time to time I am getting this exception: Cannot access a disposed object. This is how I am opening the connection:
private static LeverateCrmServiceClient crm = null;
public static CrmServiceClient Get(string crmCertificateName)
{
if (crm != null)
{
crm.Close();
}
try
{
crm = new LeverateCrmServiceClient("CrmServiceEndpoint");
crm.ClientCredentials.ClientCertificate.SetCertificate(
StoreLocation.LocalMachine,
StoreName.My,
X509FindType.FindBySubjectName,
crmCertificateName);
}
catch (Exception e)
{
log.Error("Cannot access CRM ", e);
throw;
}
return crm;
}
As you can see, I am closing and reopening the connection each time.
What do you think might be the problem?
Stack:
System.ServiceModel.Security.MessageSecurityException: Message security verification failed. ---> System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.ServiceModel.Security.SymmetricSecurityProtocol'.
at System.ServiceModel.Channels.CommunicationObject.ThrowIfClosedOrNotOpen()
at System.ServiceModel.Security.MessageSecurityProtocol.VerifyIncomingMessage(Message& message, TimeSpan timeout, SecurityProtocolCorrelationState[] correlationStates)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Security.MessageSecurityProtocol.VerifyIncomingMessage(Message& message, TimeSpan timeout, SecurityProtocolCorrelationState[] correlationStates)
at System.ServiceModel.Channels.SecurityChannelFactory`1.SecurityRequestChannel.ProcessReply(Message reply, SecurityProtocolCorrelationState correlationState, TimeSpan timeout)
at System.ServiceModel.Channels.SecurityChannelFactory`1.SecurityRequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Externals.CrmService.ICrmService.GetTradingPlatformAccountDetails(Guid ownerUserId, String organizationName, String businessUnitName, Guid tradingPlatformAccountId)
at MyAppName.Models.ActionsMetadata.Trader.BuildTrader(Guid tradingPlatformAccountId) in C:\Users\X\Documents\Visual Studio 2010\Projects\MyAppName\MyAppName\Models\ActionsMetadata\Trader.cs:line 120
at MyAppName.Models.ActionsMetadata.Trader.Login(String accountNumber, String password) in C:\Users\X\Documents\Visual Studio 2010\Projects\MyAppName\MyAppName\Models\ActionsMetadata\Trader.cs:line 48
at MyAppName.Models.ActionsMetadata.Handlers.LoginHandler.Handle(StepHandlerWrapper wrapper) in C:\Users\X\Documents\Visual Studio 2010\Projects\MyAppName\MyAppName\Models\ActionsMetadata\Handlers\LoginHandler.cs:line 23
at MyAppName.Models.ActionsMetadata.Handlers.HandlerInvoker.Invoke(IAction brokerAction, ActionStep actionStep, Dictionary`2 stepValues, HttpContext httpContext, BaseStepDataModel model) in C:\Users\X\Documents\Visual Studio 2010\Projects\MyAppName\MyAppName\Models\ActionsMetadata\Handlers\StepServerInoker.cs:line 42
at MyAppName.Controllers.LoginController.Login(String step) in C:\Users\X\Documents\Visual Studio 2010\Projects\MyAppName\MyAppName\Controllers\LoginController.cs:line 35
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)

From that stack trace, I assume you have an ASP.NET MVC application with some code that calls that Get method to get a CrmServiceClient object, and then proceeds to call various methods on that CrmServiceClient object. For example, part of the login process does this.
The way your Get method works is, each time it is called, it will first close the CrmServiceClient object that it returned previously (regardless of whether or not it is still being used) then create and return a new one.
Imagine two users attempt to log in to your application at almost the same time - within milliseconds of each other. The thread handling the first user's login calls Get and gets its CrmServiceClient object, then a millisecond later the thread handling the second user's login calls Get, which causes the first thread's CrmServiceClient object to be closed. However, the first thread is still running, and now when it attempts to call a method on it's CrmServiceClient object, it gets a System.ObjectDisposedException: Cannot access a disposed object.
"As you can see, I am closing and reopening the connection each time."
The code currently in your Get method is not a good way to achive this. You should instead make it the caller's responsibility to close (or dispose) the CrmServiceClient object, and you should perhaps rename your Get method to Open or Create to suggest this. Callers should use a using statement to ensure that the object is closed/disposed, regardless of any exceptions that occur:
using (CrmServiceClient client = CrmServiceFactory.Get("my-crm-certificate"))
{
client.Something();
client.GetTradingPlatformAccountDetails();
client.SomethingElse();
} // client is automatically closed at the end of the 'using' block