Ptvs: Loadfailed after Update 3 installed. Expected 1 export(s) with contract name but found 0

Created on 30 Jun 2016 · 7Comments · Source: microsoft/PTVS

LegacySitePackage failed for package [Python Tools Package]Source: 'Microsoft.VisualStudio.Composition' Description: Expected 1 export(s) with contract name "Microsoft.PythonTools.Interpreter.IInterpreterOptionsService" but found 0 after applying applicable constraints. Microsoft.VisualStudio.Composition.CompositionFailedException: Expected 1 export(s) with contract name "Microsoft.PythonTools.Interpreter.IInterpreterOptionsService" but found 0 after applying applicable constraints. at Microsoft.VisualStudio.Composition.ExportProvider.GetExports(ImportDefinition importDefinition) at Microsoft.VisualStudio.Composition.ExportProvider.GetExportsT,TMetadataView at Microsoft.VisualStudio.Composition.ExportProvider.GetExportT,TMetadataView at Microsoft.VisualStudio.Composition.ExportProvider.GetExportT at Microsoft.VisualStudio.Composition.ExportProvider.GetExportT at Microsoft.VisualStudio.Composition.ExportProvider.GetExportedValueT at Microsoft.VisualStudio.ComponentModelHost.ComponentModel.GetServiceT at Microsoft.PythonTools.PythonToolsService..ctor(IServiceContainer container) at Microsoft.PythonTools.PythonToolsPackage.Initialize() at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsPackage.SetSite(IServiceProvider sp)

Source

spSerg

Most helpful comment

For future reference, you only need to delete the AppData\Local\Microsoft\VisualStudio\14.0\ComponentModelCache folder to resolve this error.

zooba on 30 Jun 2016

👍15

All 7 comments

Just deleted folder of VS appdata (c:\Users\root\AppDataLocal\Microsoft\VisualStudio\14.0), and started VS again. Also was required to restore all else extensions.

spSerg on 30 Jun 2016

For future reference, you only need to delete the AppData\Local\Microsoft\VisualStudio\14.0\ComponentModelCache folder to resolve this error.

zooba on 30 Jun 2016

👍15

@zooba
you saved my life too

tnx man

assetozen on 4 May 2018

When we are trig to open project in VS 2015 we are getting message as "Expected 1 export(s) with contract name Microsoft.Internal.VisualStudio.PlatformUI.ISolution Attached Collection Service but found 0 after applying applicable constraints".
However we are facing this issue. This issue reflecting after windows update.

RhealShailendra on 6 Aug 2018

Thanks zooba, I just faced the problem with VS 2017 and sold by your help. I just deleted the folder - AppDataLocal\Microsoft\VisualStudio\15.0\ComponentModelCache

Thanks again.

Rashed