An exception was thrown while initializing part "GitHub.Infrastructure.ExportedHttpClient"

Versions

GitHub Extension for Visual Studio version: 2.7.0.6566
Visual Studio version: 14.0.25431.01 Update 3

What happened

I receive the error below when attempting to open Team Explorer. This extension was updated today and have been experiencing this error ever since it was installed. Uninstalling the extension makes the error go away. When I reinstalled the ext. the issue came back.

Steps to Reproduce

Steps to reproduce the behavior:

Go to Team Explorer

Expected behavior

I expected to see my GitHub project (Changes, Branches, etc.)

Screenshots

Logs

2019-01-18 12:17:22.377 [18072] EROR [08] TeamExplorerNavigationItemBase
System.AggregateException: One or more errors occurred. ---> Microsoft.VisualStudio.Composition.CompositionFailedException: An exception was thrown while initializing part "GitHub.Infrastructure.ExportedHttpClient". ---> System.MissingMethodException: Method not found: 'System.Net.Http.HttpMessageHandler Octokit.Internal.HttpMessageHandlerFactory.CreateDefault()'.
at GitHub.Infrastructure.ExportedHttpClient..ctor()
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue()
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create()
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose()
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportElement(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import, RuntimeExport export, Func3 lazyFactory) at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportSite(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import) at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.<CreateValue>b__10_0(RuntimeImport import) at System.Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext()
at System.Linq.Buffer1..ctor(IEnumerable1 source)
at System.Linq.Enumerable.ToArray[TSource](IEnumerable1 source) at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue() at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create() at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose() at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() at Microsoft.VisualStudio.Composition.DelegateServices.<>c__DisplayClass2_01.b__0()
at System.Lazy1.CreateValue() at System.Lazy1.LazyInitValue()
at System.Lazy1.get_Value() at GitHub.Api.SimpleApiClient.<HasWikiInternal>d__22.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 123 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at GitHub.Api.SimpleApiClient.<GetRepositoryInternal>d__19.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 74 --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose() at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportElement(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import, RuntimeExport export, Func3 lazyFactory)
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportSite(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import)
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.b__10_0(RuntimeImport import)
at System.Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext() at System.Linq.Buffer1..ctor(IEnumerable1 source) at System.Linq.Enumerable.ToArray[TSource](IEnumerable1 source)
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue()
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create()
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose()
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
at Microsoft.VisualStudio.Composition.DelegateServices.<>c__DisplayClass2_01.<As>b__0() at System.Lazy1.CreateValue()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Lazy1.get_Value() at GitHub.Api.SimpleApiClient.<IsEnterpriseInternal>d__23.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 138 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at GitHub.Api.SimpleApiClient.<IsEnterprise>d__21.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 106 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at GitHub.VisualStudio.Base.TeamExplorerItemBase.<GetRepositoryOrigin>d__18.MoveNext() in C:\projects\visualstudio\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 144 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at GitHub.VisualStudio.Base.TeamExplorerItemBase.<IsAGitHubRepo>d__19.MoveNext() in C:\projects\visualstudio\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 155 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at GitHub.VisualStudio.Base.TeamExplorerNavigationItemBase.<InvalidateAsync>d__4.MoveNext() in C:\projects\visualstudio\src\GitHub.TeamFoundation.14\Base\TeamExplorerNavigationItemBase.cs:line 52 --- End of inner exception stack trace --- ---> (Inner Exception #0) Microsoft.VisualStudio.Composition.CompositionFailedException: An exception was thrown while initializing part "GitHub.Infrastructure.ExportedHttpClient". ---> System.MissingMethodException: Method not found: 'System.Net.Http.HttpMessageHandler Octokit.Internal.HttpMessageHandlerFactory.CreateDefault()'. at GitHub.Infrastructure.ExportedHttpClient..ctor() --- End of inner exception stack trace --- at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue() at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create() at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose() at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportElement(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import, RuntimeExport export, Func3 lazyFactory)
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportSite(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import)
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.b__10_0(RuntimeImport import)
at System.Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext() at System.Linq.Buffer1..ctor(IEnumerable1 source) at System.Linq.Enumerable.ToArray[TSource](IEnumerable1 source)
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue()
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create()
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose()
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
at Microsoft.VisualStudio.Composition.DelegateServices.<>c__DisplayClass2_01.<As>b__0() at System.Lazy1.CreateValue()
at System.Lazy1.LazyInitValue() at System.Lazy1.get_Value()
at GitHub.Api.SimpleApiClient.d__22.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 123
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at GitHub.Api.SimpleApiClient.d__19.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 74
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState)
at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose()
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.b__0()
at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportElement(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import, RuntimeExport export, Func3 lazyFactory) at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportSite(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import) at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.<CreateValue>b__10_0(RuntimeImport import) at System.Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext()
at System.Linq.Buffer1..ctor(IEnumerable1 source)
at System.Linq.Enumerable.ToArray[TSource](IEnumerable1 source) at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue() at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create() at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState) at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose() at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() --- End of stack trace from previous location where exception was thrown --- at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0() at Microsoft.VisualStudio.Composition.DelegateServices.<>c__DisplayClass2_01.b__0()
at System.Lazy1.CreateValue() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Lazy1.get_Value()
at GitHub.Api.SimpleApiClient.d__23.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 138
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at GitHub.Api.SimpleApiClient.d__21.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 106
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at GitHub.VisualStudio.Base.TeamExplorerItemBase.d__18.MoveNext() in C:\projects\visualstudio\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 144
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at GitHub.VisualStudio.Base.TeamExplorerItemBase.d__19.MoveNext() in C:\projects\visualstudio\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 155
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at GitHub.VisualStudio.Base.TeamExplorerNavigationItemBase.d__4.MoveNext() in C:\projects\visualstudio\src\GitHub.TeamFoundation.14\Base\TeamExplorerNavigationItemBase.cs:line 52<---

I had this happen to me as well yesterday. You beat me to it.

@MarkLStewart

@MarkLStewart thanks for letting us know about this issue. I'm currently unable to reproduce this. We'll have to look into it more to see what might be going wrong.

@MarkLStewart @mjohnson1122 just curious if you updated to version 2.7.0 from the previous release 2.6.1? Just trying to get an idea of how we can repro this.

Mine was updated from version 2.2. It was set to automatically update so I'm not really sure why it was such a drastic jump in version numbers and why it wasn't from version 2.6.

@MarkLStewart

@MarkLStewart, @mjohnson1122,

Thanks for the report. I've dug into this but it isn't obvious what's going wrong.

I'm interested to know the following:

Are you both using Visual Studio 2015?
Do you have any other versions of Visual Studio installed?
Does the extension work on any other installed version?

Sometimes when updating an extension, Visual Studio's MEF cache doesn't get refreshed correctly. I wonder is this is the problem in this case? Could you try installing the extension again and see if you get the same error? You can simply download and install over the top of whatever version you have installed. Here is a download link:
https://visualstudio.github.com/

Thanks!

Also, if you're still having this issue, what other extensions do you have installed in VS 2015? A list is available in Help -> About.

Another thing you could do to help us: could you try attaching another instance of the VS debugger and checking the version/path to Octokit.dll and System.Net.Http? If you can let us know those versions and paths that might help diagnose the problem.

@mjohnson1122

@mjohnson1122, @MarkLStewart,

Could you try creating and running a console app with the following method:

        static void Main()
        {
            Console.WriteLine(Assembly.Load("System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"));
            Console.ReadLine();
        }

I'm interested to know if it outputs System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a or throws an exception.

@mjohnson1122

@mjohnson1122, @MarkLStewart could you try the build linked at the top of this PR #2191. If you could comment there on whether it works or not, that would be much appreciated. 🙏

I'm seeing this too... was working great at around 3am, today at about 10am, open VS, click Team Explorer pane, crash. I didn't look frame-for-frame but I think it's the same stack...

Microsoft.VisualStudio.Composition.CompositionFailedException
  HResult=0x80131500
  Message=An exception was thrown while initializing part "GitHub.Infrastructure.ExportedHttpClient".
  Source=Microsoft.VisualStudio.Composition
  StackTrace:
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue()
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create()
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState)
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState)
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose()
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0()
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportElement(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import, RuntimeExport export, Func`3 lazyFactory)
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.GetValueForImportSite(RuntimePartLifecycleTracker importingPartTracker, RuntimeImport import)
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.<CreateValue>b__10_0(RuntimeImport import)
   at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.RuntimePartLifecycleTracker.CreateValue()
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.Create()
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveNext(PartLifecycleState nextState)
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.MoveToState(PartLifecycleState requiredState)
   at Microsoft.VisualStudio.Composition.ExportProvider.PartLifecycleTracker.GetValueReadyToExpose()
   at Microsoft.VisualStudio.Composition.RuntimeExportProviderFactory.RuntimeExportProvider.<>c__DisplayClass15_0.<GetExportedValueHelper>b__0()
   at Microsoft.VisualStudio.Composition.DelegateServices.<>c__DisplayClass2_0`1.<As>b__0()
   at System.Lazy`1.CreateValue() in f:\dd\ndp\clr\src\BCL\system\Lazy.cs:line 463
   at System.Lazy`1.LazyInitValue() in f:\dd\ndp\clr\src\BCL\system\Lazy.cs:line 410
   at System.Lazy`1.get_Value() in f:\dd\ndp\clr\src\BCL\system\Lazy.cs:line 339
   at GitHub.Api.SimpleApiClient.<IsEnterpriseInternal>d__23.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 138
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 184
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 156
   at GitHub.Api.SimpleApiClient.<IsEnterprise>d__21.MoveNext() in C:\projects\visualstudio\src\GitHub.Api\SimpleApiClient.cs:line 106
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 184
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 156
   at GitHub.VisualStudio.Base.TeamExplorerItemBase.<GetRepositoryOrigin>d__18.MoveNext() in C:\projects\visualstudio\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 144
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 184
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 156
   at GitHub.VisualStudio.Base.TeamExplorerItemBase.<IsAGitHubRepo>d__19.MoveNext() in C:\projects\visualstudio\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 155
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 184
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\TaskAwaiter.cs:line 156
   at GitHub.VisualStudio.TeamExplorer.Home.GitHubHomeSection.<RepoChanged>d__9.MoveNext() in C:\projects\visualstudio\src\GitHub.TeamFoundation.14\Home\GitHubHomeSection.cs:line 67
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.<ThrowAsync>b__6_0(Object state) in f:\dd\ndp\clr\src\BCL\system\runtime\compilerservices\AsyncMethodBuilder.cs:line 1018
   at Microsoft.VisualStudio.Threading.JoinableTaskFactory.SingleExecuteProtector.TryExecute()
   at Microsoft.VisualStudio.Threading.JoinableTaskFactory.SingleExecuteProtector.<>c.<.cctor>b__20_0(Object state)
   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 MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) in f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs:line 954
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) in f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs:line 901
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) in f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs:line 890
   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext 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)

Inner Exception 1:
MissingMethodException: Method not found: 'System.Net.Http.HttpMessageHandler Octokit.Internal.HttpMessageHandlerFactory.CreateDefault()'.

@mjohnson1122

@mjohnson1122, @MarkLStewart,

Could you try creating and running a console app with the following method:
        static void Main()
        {
            Console.WriteLine(Assembly.Load("System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"));
            Console.ReadLine();
        }
I'm interested to know if it outputs System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a or throws an exception.

@jcansdale it throws for me...

Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection)
   at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.Load(String assemblyString)
   at ConsoleApp.Program.Main(String[] args) in c:\MyConsoleApp\ConsoleApp\ConsoleApp\Program.cs:line 10
Press any key to continue . . .

@jcansdale

@jcansdale fuslogvw.exe produces...

*** Assembly Binder Log Entry  (1/22/2019 @ 11:24:24 AM) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Running under executable  C:\MyConsoleApp\ConsoleApp\ConsoleApp\bin\Debug\ConsoleApp.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: DisplayName = System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
 (Fully-specified)
LOG: Appbase = file:///c:/MyConsoleApp/ConsoleApp/ConsoleApp/bin/Debug/
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = ConsoleApp.exe
Calling assembly : ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: c:\MyConsoleApp\ConsoleApp\ConsoleApp\bin\Debug\ConsoleApp.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: Post-policy reference: System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///c:/MyConsoleApp/ConsoleApp/ConsoleApp/bin/Debug/System.Net.Http.DLL.
LOG: Attempting download of new URL file:///c:/MyConsoleApp/ConsoleApp/ConsoleApp/bin/Debug/System.Net.Http/System.Net.Http.DLL.
LOG: Attempting download of new URL file:///c:/MyConsoleApp/ConsoleApp/ConsoleApp/bin/Debug/System.Net.Http.EXE.
LOG: Attempting download of new URL file:///c:/MyConsoleApp/ConsoleApp/ConsoleApp/bin/Debug/System.Net.Http/System.Net.Http.EXE.
LOG: All probing URLs attempted and failed.

I just tried Visual Studio Repair ... no dice, same issue.

@grokys

Another thing you could do to help us: could you try attaching another instance of the VS debugger and checking the version/path to Octokit.dll and System.Net.Http? If you can let us know those versions and paths that might help diagnose the problem.

@grokys ...

Also, I reverted to 2.6.0 problem went away. I'll try to use that for now. Thanks.

@mjohnson1122

@mjohnson1122, @MarkLStewart,
Could you try creating and running a console app with the following method:
static void Main()
{
Console.WriteLine(Assembly.Load("System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"));
Console.ReadLine();
}
I'm interested to know if it outputs System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a or throws an exception.

Here's what I got:

An unhandled exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll

Additional information: Could not load file or assembly 'System.Net.Http, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

Just installed 2.7.1.6591 and all is well in the world again. Thank you!

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An exception was thrown while initializing part "GitHub.Infrastructure.ExportedHttpClient" #2186

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An exception was thrown while initializing part "GitHub.Infrastructure.ExportedHttpClient" #2186

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mjohnson1122 commented on Jan 18, 2019

meaghanlewis commented on Jan 18, 2019

mjohnson1122 commented on Jan 18, 2019

jcansdale commented on Jan 21, 2019

shana commented on Jan 21, 2019

grokys commented on Jan 22, 2019

jcansdale commented on Jan 22, 2019

jcansdale commented on Jan 22, 2019

Ashley2525 commented on Jan 22, 2019

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Ashley2525 commented on Jan 22, 2019

Ashley2525 commented on Jan 22, 2019

Ashley2525 commented on Jan 22, 2019

Ashley2525 commented on Jan 22, 2019

MarkLStewart commented on Jan 24, 2019

MarkLStewart commented on Jan 24, 2019

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