Microsoft.VisualStudio.PlatformUI.NavigateToPackage package fails to load - quick find dialog is missing

[agraham]

When I press [Ctrl-,] in Blend to bring up the quick find dialog nothing happens.

I created an issue at
In Blend 16.1 CTRL-Comma doesn't work because "NavigateToPackage package did not load correctly" - Developer Community
but I never got any response.

I've uninstalled and reinstalled to no avail.

Don't know what to try now.

I get this in AppData\Roaming\Microsoft\Blend\16.0_5907a15e\ActivityLog.xml:

```

<entry>
<record>621</record>
<time>2020/01/10 23:58:19.372</time>
<type>Error</type>
<source>VisualStudio</source>
<description>LegacySitePackage failed for package [Microsoft.VisualStudio.PlatformUI.NavigateToPackage]Source: &apos;mscorlib&apos; Description: Could not load file or assembly &apos;Microsoft.VisualStudio.Language.NavigateTo.Interfaces, Version=16.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a&apos; or one of its dependencies. The system cannot find the file specified.&#x000D;&#x000A;System.IO.FileNotFoundException: Could not load file or assembly &apos;Microsoft.VisualStudio.Language.NavigateTo.Interfaces, Version=16.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a&apos; or one of its dependencies. The system cannot find the file specified.&#x000D;&#x000A;File name: &apos;Microsoft.VisualStudio.Language.NavigateTo.Interfaces, Version=16.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a&apos;&#x000D;&#x000A; at System.Signature.GetSignature(Void* pCorSig, Int32 cCorSig, RuntimeFieldHandleInternal fieldHandle, IRuntimeMethodInfo methodHandle, RuntimeType declaringType)&#x000D;&#x000A; at System.Signature..ctor(IRuntimeFieldInfo fieldHandle, RuntimeType declaringType)&#x000D;&#x000A; at System.Reflection.RtFieldInfo.get_FieldType()&#x000D;&#x000A; at System.ComponentModel.Composition.ReflectionModel.ReflectionField.get_ReturnType()&#x000D;&#x000A; at System.ComponentModel.Composition.AttributedModel.AttributedModelDiscovery.CreateMemberImportDefinition(MemberInfo member, ICompositionElement origin)&#x000D;&#x000A; at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo.GetImportDefinitions()&#x000D;&#x000A; at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo.DiscoverExportsAndImports()&#x000D;&#x000A; at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo.GetImports()&#x000D;&#x000A; at System.ComponentModel.Composition.ReflectionModel.ReflectionComposablePartDefinition.get_ImportDefinitions()&#x000D;&#x000A; at System.ComponentModel.Composition.ReflectionModel.ReflectionComposablePart.get_ImportDefinitions()&#x000D;&#x000A; at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImportsStateMachine(PartManager partManager, ComposablePart part)&#x000D;&#x000A; at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImports(PartManager partManager, ComposablePart part, Boolean shouldTrackImports)&#x000D;&#x000A; at System.ComponentModel.Composition.Hosting.ImportEngine.SatisfyImportsOnce(ComposablePart part)&#x000D;&#x000A; at System.ComponentModel.Composition.Hosting.CompositionContainer.SatisfyImportsOnce(ComposablePart part)&#x000D;&#x000A; at Microsoft.VisualStudio.Composition.NetFxAdapters.CompositionService.SatisfyImportsOnce(ComposablePart part)&#x000D;&#x000A; at System.ComponentModel.Composition.AttributedModelServices.SatisfyImportsOnce(ICompositionService compositionService, Object attributedPart)&#x000D;&#x000A; at Microsoft.VisualStudio.PlatformUI.NavigateToPackage.Initialize()&#x000D;&#x000A; at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsPackage.SetSite(IServiceProvider sp)&#x000D;&#x000A;&#x000D;&#x000A;WRN: Assembly binding logging is turned OFF.&#x000D;&#x000A;To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.&#x000D;&#x000A;Note: There is some performance penalty associated with assembly bind failure logging.&#x000D;&#x000A;To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].&#x000D;&#x000A;</description>
<guid>{BA23157D-C797-4A3C-8535-D9C9AAC03725}</guid>
<hr>80070002</hr>
<errorinfo></errorinfo>
</entry>
<entry>
<record>622</record>
<time>2020/01/10 23:58:19.375</time>
<type>Error</type>
<source>VisualStudio</source>
<description>SetSite failed for package [Microsoft.VisualStudio.PlatformUI.NavigateToPackage](null)</description>
<guid>{BA23157D-C797-4A3C-8535-D9C9AAC03725}</guid>
<hr>80070002</hr>
<errorinfo></errorinfo>
</entry>

```

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