Strange Unhandled Exception from mono - c#

We use mono 4.8.0 for our product. When running particular testings on different kinds of Linux, we got unhandled exception triggered occasionally. More specifically AppDomain.UnhandledException event triggered. But we can't figure out which line of our code triggered the exception. I'm wondering is this a defect of mono?
[ERROR] FATAL UNHANDLED EXCEPTION: System.ExecutionEngineException: ExecutionContext_ExceptionInAsyncLocalNotification ---> System.Threading.ThreadAbortException
at System.Collections.Generic.ObjectEqualityComparer'1[T].Equals (T x, T y) <0x7f0f20aa1e80 + 0x00000> in :0
at System.Collections.Generic.Dictionary'2[TKey,TValue].FindEntry (TKey key) [0x0005d] in :0
at System.Collections.Generic.Dictionary'2[TKey,TValue].TryGetValue (TKey key, TValue& value) [0x00000] in :0
at System.Threading.ExecutionContext.OnAsyncLocalContextChanged (System.Threading.ExecutionContext previous, System.Threading.ExecutionContext current) [0x00119] in ...../mono/mono/mcs/class/referencesource/mscorlib/system/threading/executioncontext.cs:749
--- End of inner exception stack trace ---
at System.Environment.FailFast (System.String message, System.Exception exception) [0x00000] in ...../mono/mono/mcs/class/corlib/System/Environment.cs:929
at System.Threading.ExecutionContext.OnAsyncLocalContextChanged (System.Threading.ExecutionContext previous, System.Threading.ExecutionContext current) [0x00164] in ..../mono/mono/mcs/class/referencesource/mscorlib/system/threading/executioncontext.cs:758
at System.Threading.ExecutionContext.SetExecutionContext (System.Threading.ExecutionContext executionContext, System.Boolean preserveSyncCtx) [0x0005f] in ..../mono/mono/mcs/class/referencesource/mscorlib/system/threading/executioncontext.cs:1028
Thanks

Try <AppContextSwitchOverrides value="Switch.System.Globalization.NoAsyncCurrentCulture=true" /> and avoid using AsyncLocal<T>

Related

Xamarin Android Using Handler crashes randomly Unable to activate instance of type Java.Lang.Thread+RunnableImplementor from native handle

I am using Xamarin Android Native to create a worker handler using postdelay to run some background data fetching from webservice, the handler would call a function every few seconds, but when the activity runs, the app crashes randomly, and the FATAL EXCEPTION stack trace did not specify where exactly the problem is and every time it just throw the same message: "android.runtime.JavaProxyThrowable: System.NotSupportedException: Unable to activate instance of type Java.Lang.Thread+RunnableImplementor from native handle"
Following is the detail stack-trace:
AndroidRuntime: FATAL EXCEPTION: main
Process: ..., PID: 23551
android.runtime.JavaProxyThrowable: System.NotSupportedException: Unable to activate instance of type Java.Lang.Thread+RunnableImplementor from native handle 0xffd76a6c (key_handle 0x5005665). ---> System.MissingMethodException: No constructor found for Java.Lang.Thread+RunnableImplementor::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership) ---> Java.Interop.JavaLocationException: Exception of type 'Java.Interop.JavaLocationException' was thrown.
--- End of inner exception stack trace ---
at Java.Interop.TypeManager.CreateProxy (System.Type type, System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer) [0x00054] in <263adecfa58f4c449f1ff56156d886fd>:0
at Java.Interop.TypeManager.CreateInstance (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer, System.Type targetType) [0x00111] in <263adecfa58f4c449f1ff56156d886fd>:0
--- End of inner exception stack trace ---
at Java.Interop.TypeManager.CreateInstance (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer, System.Type targetType) [0x0017d] in <263adecfa58f4c449f1ff56156d886fd>:0
at Java.Lang.Object.GetObject (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer, System.Type type) [0x000b9] in <263adecfa58f4c449f1ff56156d886fd>:0
at Java.Lang.Object._GetObject[T] (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer) [0x00017] in <263adecfa58f4c449f1ff56156d886fd>:0
at Java.Lang.Object.GetObject[T] (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer) [0x00000] in <263adecfa58f4c449f1ff56156d886fd>:0
at Java.Lang.Object.GetObject[T] (System.IntPtr jnienv, System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer) [0x00006] in <263adecfa58f4c449f1ff56156d886fd>:0
at Java.Lang.IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this) [0x00000] in <263adecfa58f4c449f1ff56156d886fd>:0
at (wrapper dynamic-method) System.Object.eac9d564-b7f8-4035-a2ff-b38fdb337e7b(intptr,intptr)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
at android.os.Handler.handleCallback(Handler.java:794)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:6651)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:824)
Who has encounter the same before?
And how to resolve this issue?
Your help is so much appreciated.

Mono Bug : Magic number is wrong: 542

I am trying to compile a C# Hello World application in Rider on Linux.
When I try to run the app, I am promted the following exception:
Unhandled Exception:
System.TypeInitializationException: The type initializer for 'System.Console' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.ConsoleDriver' threw an exception. ---> System.Exception: Magic number is wrong: 542
at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32& position) [0x00028] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.TermInfoReader..ctor (System.String term, System.String filename) [0x0005f] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.TermInfoDriver..ctor (System.String term) [0x00055] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.ConsoleDriver.CreateTermInfoDriver (System.String term) [0x00000] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.ConsoleDriver..cctor () [0x0004d] in <a84b655e5e6a49ee96b338ec792f5580>:0
--- End of inner exception stack trace ---
at System.Console.SetupStreams (System.Text.Encoding inputEncoding, System.Text.Encoding outputEncoding) [0x00007] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.Console..cctor () [0x0008e] in <a84b655e5e6a49ee96b338ec792f5580>:0
--- End of inner exception stack trace ---
at TestCaseApp.Program.Main (System.String[] args) [0x00001] in <662667bfa1e4443ea031df076247d2d3>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type initializer for 'System.Console' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.ConsoleDriver' threw an exception. ---> System.Exception: Magic number is wrong: 542
at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32& position) [0x00028] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.TermInfoReader..ctor (System.String term, System.String filename) [0x0005f] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.TermInfoDriver..ctor (System.String term) [0x00055] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.ConsoleDriver.CreateTermInfoDriver (System.String term) [0x00000] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.ConsoleDriver..cctor () [0x0004d] in <a84b655e5e6a49ee96b338ec792f5580>:0
--- End of inner exception stack trace ---
at System.Console.SetupStreams (System.Text.Encoding inputEncoding, System.Text.Encoding outputEncoding) [0x00007] in <a84b655e5e6a49ee96b338ec792f5580>:0
at System.Console..cctor () [0x0008e] in <a84b655e5e6a49ee96b338ec792f5580>:0
--- End of inner exception stack trace ---
at TestCaseApp.Program.Main (System.String[] args) [0x00001] in <662667bfa1e4443ea031df076247d2d3>:0
I am using Antergos (Linux) and JetBrains Rider 2017.3.1
Build #RD-173.3994.2442
I have am using Mono 5.4.1.7-2
I did some research about this bug and I found:
https://github.com/mono/mono/issues/6752#issuecomment-365212655
Mono compiler // Terminal emulator issue
Everything mentioned in these threads didn't help me to fix this issue. What can I do?
Did you not follow the instructions on that page? You need to set your TERM environmental variable to xterm as a fix:
export TERM=xterm
Then verify it is changed with:
echo $TERM
The means exactly this: "I want to run your script, but you need to specify the terminal you want me to use"
In GoG version of Stardew Valley, the script in question is: ./start.sh
Launching this causes the above error.
If instead:
export 'TERM=roxterm' && ./start.sh
then it works because I have the roxterm terminal installed on my system and the script can use it to execute. What I do know is the global parameter in Ubuntu that tells scrips use this unless it is: Default Applications
Looking at snippet of the script, originally it is:
run_game() {
echo "Running ${GAME_NAME}"
cd game
chmod +x *
./"StardewValley"
}
Corrected for roxterm it would be:
run_game() {
echo "Running ${GAME_NAME}"
cd game
chmod +x *
export 'TERM=roxterm' && ./"StardewValley"
}
The latter solution works with application launchers and is thus superior.

Mono compiler // Terminal emulator issue

I get this error when I try to compile csharp or fsharp files. This happens when using gnome terminal or jetbrain rider.
It works fine in tty or termials like xterm and urxvt.
Also I am able to compile c, c++ and go code.
Btw, I am using Arch/Antergos and got this issue yesterday.
Unhandled Exception:
System.TypeInitializationException: The type initializer for 'System.Console' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.ConsoleDriver' threw an exception. ---> System.Exception: Magic number is wrong: 542
at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32& position) [0x00028] in :0
at System.TermInfoReader..ctor (System.String term, System.String filename) [0x0005f] in :0
at System.TermInfoDriver..ctor (System.String term) [0x00055] in :0
at System.ConsoleDriver.CreateTermInfoDriver (System.String term) [0x00000] in :0
at System.ConsoleDriver..cctor () [0x0004d] in :0
--- End of inner exception stack trace ---
at System.Console.SetupStreams (System.Text.Encoding inputEncoding, System.Text.Encoding outputEncoding) [0x00007] in :0
at System.Console..cctor () [0x0008e] in :0
--- End of inner exception stack trace ---
at Mono.CSharp.Driver.Main (System.String[] args) [0x00019] in <2b1e99ce45b54209bdcdab138d9758ae>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type initializer for 'System.Console' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.ConsoleDriver' threw an exception. ---> System.Exception: Magic number is wrong: 542
at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32& position) [0x00028] in :0
at System.TermInfoReader..ctor (System.String term, System.String filename) [0x0005f] in :0
at System.TermInfoDriver..ctor (System.String term) [0x00055] in :0
at System.ConsoleDriver.CreateTermInfoDriver (System.String term) [0x00000] in :0
at System.ConsoleDriver..cctor () [0x0004d] in :0
--- End of inner exception stack trace ---
at System.Console.SetupStreams (System.Text.Encoding inputEncoding, System.Text.Encoding outputEncoding) [0x00007] in :0
at System.Console..cctor () [0x0008e] in :0
--- End of inner exception stack trace ---
at Mono.CSharp.Driver.Main (System.String[] args) [0x00019] in <2b1e99ce45b54209bdcdab138d9758ae>:0

The type initializer for 'Microsoft.WindowsAzure.Storage.CloudStorageAccount' threw an exception error in Xamarin.forms

I'm working on AzureStorage cloud solution provided by Xamarin.
https://developer.xamarin.com/guides/xamarin-forms/cloud-services/storage/azure-storage/
And this is what I got in GetContainer() method.
The type initializer for
'Microsoft.WindowsAzure.Storage.CloudStorageAccount' threw an
exception
I applied my connection string in the sample project and it worked, but not in my own project.
Has anyone ever faced this issue? Please help me.
Thanks in advance.
Error message :
System.TypeInitializationException: The type initializer for 'Microsoft.WindowsAzure.Storage.CloudStorageAccount' threw an exception. ---> System.NotImplementedException: The method or operation is not implemented.
at Microsoft.WindowsAzure.Storage.CloudStorageAccount.Setting (System.String name, System.String[] validValues) [0x00000] in <667a5fa37f124e50ab7a68ecb3437b13>:0
at Microsoft.WindowsAzure.Storage.CloudStorageAccount..cctor () [0x00000] in <667a5fa37f124e50ab7a68ecb3437b13>:0
--- End of inner exception stack trace ---
at MyTenantWorld.AzureStorage.GetContainer (MyTenantWorld.ContainerType containerType) [0x00020] in <9816076ee17d42efaf1050c5169a4310>:0
at MyTenantWorld.AzureStorage+<UploadFileAsync>d__3.MoveNext () [0x0001a] in <9816076ee17d42efaf1050c5169a4310>:0
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <3fd174ff54b146228c505f23cf75ce71>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <3fd174ff54b146228c505f23cf75ce71>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <3fd174ff54b146228c505f23cf75ce71>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <3fd174ff54b146228c505f23cf75ce71>:0
at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in <3fd174ff54b146228c505f23cf75ce71>:0
at MyTenantWorld.SettingsPage+<SaveData>d__20.MoveNext () [0x00309] in <9816076ee17d42efaf1050c5169a4310>:0
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <3fd174ff54b146228c505f23cf75ce71>:0
at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_0 (System.Object state) [0x00000] in <3fd174ff54b146228c505f23cf75ce71>:0
at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0 () [0x00000] in <d855bac285f44dda8a0d8510b679b1e2>:0
at Java.Lang.Thread+RunnableImplementor.Run () [0x00008] in <d855bac285f44dda8a0d8510b679b1e2>:0
at Java.Lang.IRunnableInvoker.n_Run (System.IntPtr jnienv, System.IntPtr native__this) [0x00008] in <d855bac285f44dda8a0d8510b679b1e2>:0
at at (wrapper dynamic-method) System.Object:a4fed05a-cd7a-4756-85bb-5dd975374042 (intptr,intptr)
As the GetContainer method defined under AzureStorage.cs as follows:
static CloudBlobContainer GetContainer(ContainerType containerType)
{
var account = CloudStorageAccount.Parse(Constants.StorageConnection);
var client = account.CreateCloudBlobClient();
return client.GetContainerReference(containerType.ToString().ToLower());
}
It seems that the error was thrown by CloudStorageAccount.Parse, but from BergQuester's link about CloudStorageAccount.Parse, we could find that this error is not from the predictable exceptions.
From your stack trace, we could find the error was thrown at Setting(string name, params string[] validValues) from CloudStorageAccount.cs. I used WindowsAzure.Storage 8.3.0 and tested it under my BruceChen_Mobile.UWP project and PCL project, it could work as expected with my azure storage connection string.
I applied my connection string in the sample project and it worked, but not in my own project.
I would recommend you checking the packages between your application and the xamarin-forms-samples. Or you could provide a reproducible sample project for us to narrow this issue.
I fixed this issue on mine by adding a reference to the WindowsAzure.Storage nuget package from my native projects (not just in the PCL project), as it requires some native implementations that are defined in these references.

monodevelop crashes with WebRequest

This problem has kind of stumpped me for the last couple of hours. Any clue why the application is crashing with this callstack in monodevelop. It will compile and run correctly if I build the application with xbuild.
Unhandled Exception:
System.Net.WebException: An exception occurred during a WebClient request. ---> System.TypeInitializationException: The type initializer for 'System.Net.WebRequest' threw an exception. ---> System.Configuration.ConfigurationErrorsException: Error Initializing the configuration system. ---> System.TypeLoadException: Failure has occurred while loading a type.
at System.Configuration.Configuration.Init (IConfigSystem system, System.String configPath, System.Configuration.Configuration parent) [0x00065] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/Configuration.cs:137
at System.Configuration.Configuration..ctor (System.Configuration.InternalConfigurationSystem system, System.String locationSubPath) [0x0005c] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/Configuration.cs:96
at System.Configuration.Configuration..ctor (System.Configuration.InternalConfigurationSystem system, System.String locationSubPath) [0x0003b] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/Configuration.cs:91
at System.Configuration.InternalConfigurationFactory.Create (System.Type typeConfigHost, System.Object[] hostInitConfigurationParams) [0x0000e] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/InternalConfigurationFactory.cs:41
at System.Configuration.ConfigurationManager.OpenExeConfigurationInternal (ConfigurationUserLevel userLevel, System.Reflection.Assembly calling_assembly, System.String exePath) [0x00102] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/ConfigurationManager.cs:119
at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00011] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/ClientConfigurationSystem.cs:49
--- End of inner exception stack trace ---
at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00025] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/ClientConfigurationSystem.cs:52
at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection (System.String configKey) [0x00000] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/ClientConfigurationSystem.cs:61
at System.Configuration.ConfigurationManager.GetSection (System.String sectionName) [0x00000] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System.Configuration/System.Configuration/ConfigurationManager.cs:159
at System.Net.WebRequest..cctor () [0x00014] in /builddir/build/BUILD/mono-4.2.3/mcs/class/System/System.Net/WebRequest.cs:71
--- End of inner exception stack trace ---
at System.Net.WebClient.GetWebRequest (System.Uri address) [0x00000] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/System/net/System/Net/webclient.cs:285
at ParkitectNexus.Data.Web.Client.NexusWebClient.GetWebRequest (System.Uri uri) [0x00003] in /home/michaelpollind/Desktop/ParkitectNexusClient/src/ParkitectNexus.Data/Web/Client/NexusWebClient.cs:70
at System.Net.WebClient.OpenReadAsync (System.Uri address, System.Object userToken) [0x0003b] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/System/net/System/Net/webclient.cs:1846
--- End of inner exception stack trace ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:201
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:170
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:142
at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:372
at ParkitectNexus.Data.Web.API.ParkitectNexusAPI+<GetRequiredModIdentifiers>c__async1.MoveNext () [0x000b8] in /home/michaelpollind/Desktop/ParkitectNexusClient/src/ParkitectNexus.Data/Web/API/ParkitectNexusAPI.cs:86
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:201
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:170
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:142
at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:372
at ParkitectNexus.Client.Base.Pages.AssetsPageView+<GetRequiredMods>c__async0.MoveNext () [0x0007c] in /home/michaelpollind/Desktop/ParkitectNexusClient/src/ParkitectNexus.Client.Base/Pages/AssetsPageView.cs:62
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>m__1 (System.Object state) [0x00000] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1010
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context (System.Object state) [0x0000e] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/threading/threadpool.cs:1291
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, Boolean preserveSyncCtx) [0x00081] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/threading/executioncontext.cs:581
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, Boolean preserveSyncCtx) [0x00000] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/threading/executioncontext.cs:530
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x0002a] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/threading/threadpool.cs:1268
at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00096] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/threading/threadpool.cs:859
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x00000] in /builddir/build/BUILD/mono-4.2.3/external/referencesource/mscorlib/system/threading/threadpool.cs:1196
After some testing I found that creating a separate project and copying everything into it seems to have resolved the configuration error. If anyone has any insight into this, I would like to know.

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