Microsoft.VisualStudio.Composition.CompositionFailedException

[cookston]

Issue occurs regularly, perhaps once or twice day, an exception is displayed in Team Explorer when launching Visual Studio.
Current workaround is to uninstall and re-install GitHub Extension (but currently having to do this often) Extension then works without problem for a few hours.

Microsoft.VisualStudio.Composition.CompositionFailedException: An exception was thrown while initializing part "GitHub.VisualStudio.TeamExplorer.Connect.GitHubConnectSection0". ---> System.Windows.Markup.XamlParseException: Set property 'GitHub.VisualStudio.Helpers.SharedDictionaryManager.Source' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'GitHub.UI, Culture=neutral' 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.Assembly.Load(AssemblyName assemblyRef)
   at System.Windows.Navigation.BaseUriHelper.GetLoadedAssembly(String assemblyName, String assemblyVersion, String assemblyKey)
   at MS.Internal.AppModel.ResourceContainer.GetResourceManagerWrapper(Uri uri, String& partName, Boolean& isContentFile)
   at MS.Internal.AppModel.ResourceContainer.GetPartCore(Uri uri)
   at System.IO.Packaging.Package.GetPartHelper(Uri partUri)
   at System.IO.Packaging.Package.GetPart(Uri partUri)
   at System.IO.Packaging.PackWebResponse.CachedResponse.GetResponseStream()
   at System.IO.Packaging.PackWebResponse.GetResponseStream()
   at System.IO.Packaging.PackWebResponse.get_ContentType()
   at MS.Internal.WpfWebRequestHelper.GetContentType(WebResponse response)
   at MS.Internal.WpfWebRequestHelper.GetResponseStream(WebRequest request, ContentType& contentType)
   at System.Windows.ResourceDictionary.set_Source(Uri value)
   at GitHub.VisualStudio.Helpers.SharedDictionaryManager.set_Source(Uri value) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\common\SharedDictionaryManager.cs:line 54
   --- End of inner exception stack trace ---
   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.LoadComponent(Object component, Uri resourceLocator)
   at GitHub.VisualStudio.UI.Views.GitHubConnectContent.InitializeComponent() in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.VisualStudio.UI\UI\Views\GitHubConnectContent.xaml:line 1
   at GitHub.VisualStudio.UI.Views.GitHubConnectContent..ctor() in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.VisualStudio.UI\UI\Views\GitHubConnectContent.xaml.cs:line 16
   at GitHub.VisualStudio.TeamExplorer.Connect.GitHubConnectSection.OnPropertyChange(Object sender, PropertyChangedEventArgs e) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.TeamFoundation.14\Connect\GitHubConnectSection.cs:line 198
   at GitHub.Primitives.NotificationAwareObject.RaisePropertyChanged(String propertyName) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.Exports\Helpers\NotificationAwareObject.cs:line 12
   at GitHub.VisualStudio.Base.TeamExplorerItemBase.set_IsVisible(Boolean value) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.VisualStudio.UI\Base\TeamExplorerItemBase.cs:line 141
   at GitHub.VisualStudio.TeamExplorer.Connect.GitHubConnectSection.Refresh(IConnection connection) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.TeamFoundation.14\Connect\GitHubConnectSection.cs:line 160
   at GitHub.VisualStudio.TeamExplorer.Connect.GitHubConnectSection.UpdateConnection() in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.TeamFoundation.14\Connect\GitHubConnectSection.cs:line 190
   at GitHub.VisualStudio.TeamExplorer.Connect.GitHubConnectSection..ctor(ISimpleApiClientFactory apiFactory, ITeamExplorerServiceHolder holder, IConnectionManager manager, IPackageSettings packageSettings, Int32 index) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.TeamFoundation.14\Connect\GitHubConnectSection.cs:line 108
   at GitHub.VisualStudio.TeamExplorer.Connect.GitHubConnectSection0..ctor(ISimpleApiClientFactory apiFactory, ITeamExplorerServiceHolder holder, IConnectionManager manager, IPackageSettings settings) in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.TeamFoundation.14\Connect\GitHubConnectSection0.cs:line 21
   --- 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.ExportProvider.<>c__DisplayClass53_0.<CreateExport>b__0()
   at Microsoft.VisualStudio.Composition.ExportProvider.<>c__DisplayClass55_0.<CreateExportFactoryExport>b__1()
   at Microsoft.VisualStudio.Composition.ExportProvider.<>c__DisplayClass54_0.<CreateExportFactory>b__0()
   at Microsoft.VisualStudio.Composition.DelegateServices.<>c__DisplayClass2_0`1.<As>b__0()
   at System.ComponentModel.Composition.ExportFactory`1.CreateExport()
   at Microsoft.VisualStudio.Composition.NetFxAdapters.MefV1ExportProvider.ComposablePartDefinitionForExportFactory.CreatePart()
   at System.ComponentModel.Composition.ReflectionModel.ExportFactoryCreator.LifetimeContext.GetExportLifetimeContextFromExport[T](Export export)
   at System.ComponentModel.Composition.ReflectionModel.ExportFactoryCreator.<>c__DisplayClass6_0`2.<CreateStronglyTypedExportFactoryOfTM>b__0()
   at System.ComponentModel.Composition.ExportFactory`1.CreateExport()
   at Microsoft.TeamFoundation.Controls.WPF.TeamExplorer.Framework.TeamExplorerSectionHost.Create()

Visual Studio 14.0.254.25.01 Update 3

Git Hub Extension
1.0.18.6

Logs from:
%appdata%\Microsoft\VisualStudio\14.0\ActivityLog.xml
%localappdata%\temp\extension.log
%localappdata%\GitHubVisualStudio\extension.log

logs.zip

[cookston]

Seems related to #142

[shana]

@cookston This looks to be the same as #461. So sorry you're getting this, it's a race condition introduced in 1.0.18.3 that wasn't getting triggered until very recently, for some reason 😢

We have a fix for it in version 2.0.14, which is due out today and is already available in our custom gallery feed (https://visualstudio.github.com/releases/feed.rss), from our releases page, or directly from https://ghfvs-installer.github.com/releases/stable/2.0.14.0/GitHub.VisualStudio.vsix

Could you try it out and see if it fixes things for you? It fixes this on our testing, but the more confirmation the better.

[shana]

2.0.14.1 is live in the Visual Studio gallery with a fix for this.

[cookston]

Great - thank you! So far it is working well.

[cookston]

I spoke too soon.
The problem remains with 2.0.14.1:

[shana]

😢

There's a few more things I can think of doing to track this down, I'll get a patch going and link you to a new build in a bit.

[shana]

Does the Connect page start failing randomly after working for a while? Or does it only fail when you first go to it after starting VS?

[shana]

I suspect this got introduced in 1.0.18.3. If that's the case, then you can try downgrading to https://github.com/github/VisualStudio/releases/tag/v1.0.18.2 while we investigate.

[cookston]

OK thanks - I have reverted. Will let you know if the problem occurs with v1.10.18.2

[shana]

@cookston There is a new build, 2.0.14.2, which includes a potential fix to the issue you're seeing 🙏

You can download it from http://ghfvs-installer.github.com/releases/2.0.14.2/GitHub.VisualStudio.vsix or from the releases page.

Please do let us know if this fixes things, we can't currently repro the issue so it's hard for us to be 100% confident that we've covered all the edge cases here.

[shana]

Should be fixed in 2.0.14.2 and above.

[cookston]

Yes - thanks the issue has not returned since the upgrade.

[IT-CASADO]

Is this really fixed!? I got exactly this error in Visual Studio last days. My installed version is 2.0.15.1.

[JohnnyBravo75]

My installed version is 2.2.0.8 and I get:

Microsoft.VisualStudio.Composition.CompositionFailedException: An exception was thrown while initializing part "GitHub.Services.VSGitServices". ---> System.NullReferenceException: Object reference not set to an instance of an object.
at GitHub.VisualStudio.GitHubProviderDispatcher.GetServiceT in Y:\jenkins\workspace\GitHub for Visual Studio speakeasy jenkinskeep\src\GitHub.VisualStudio\Services\GitHubServiceProvider.cs:line 63
at GitHub.Services.VSGitServices..ctor(IGitHubServiceProvider serviceProvider) in Y:\jenki....