问题
Recently i encountered this issue whereby whenever i right-click "Add Reference..." it give me an error as stated below.
Package 'ReferenceManagerPackage' failed to load.
Attempted to reinstall Visual studio 2012 however it still doesn't work.
hasn't meet this issue before.
EDIT: 512 2013/04/14 00:49:11.860 Error VisualStudio CreateInstance failed for package [ReferenceManagerPackage] {48D4A2C1-02AD-4F18-9153-620511BACB7B}
80131522 Could not load type 'Microsoft.VisualStudio.Shell.Interop.IVsReferenceManager2' from assembly 'Microsoft.VisualStudio.Shell.Interop.11.0, Version=11.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
回答1:
I had this issue before. If I remember the reason for this, basically you have that particular binary in your gac. I'm guessing you recently updated Visual Studio. Although it patched the dll on disk, it is likely loading the dll from the gac, which hasn't been updated. Just regac the dll and you should be fine.
EDIT
Sorry, that's my bad. regac isn't an actual command,I just mean you have to add the item to the gac again.
Start a visual studio command prompt and run this command gacutil /i <path_to_assembly>,
回答2:
I just got this error after installation of Visual Studio 2017.
The solution was as follows.
- Launch
Developer Command Prompt for VS 2017 CD C:\Program Files\Microsoft Visual Studio\2017\Community\Common7\IDE\PublicAssemblies- Run
gacutil -i Microsoft.VisualStudio.Shell.Interop.11.0.dll
You should now see
Microsoft (R) .NET Global Assembly Cache Utility. Version 4.0.30319.0
Copyright (c) Microsoft Corporation. All rights reserved.
Assembly successfully added to the cache
Restart Visual Studio and hopefully all will be well and you can add references.
The file C:\Users\USER\AppData\Roaming\Microsoft\VisualStudio\15.0_cc9cc69a\ActivityLog.xml is useful for debugging any other assemblies that may be causing the issue. Annoyingly it's very tempting to click No when asked never to see the error message again, which will suppress the error and this path so I thought I'd post it here for reference.
回答3:
I've just had the same error (how I got it was different) and adding the assembly back into the GAC did the trick for me. From a VS 2012 command prompt (as admin) I typed...
gacutil -i Microsoft.VisualStudio.Shell.Interop.11.0.dll
Now, my situation differs in that I had to un-install VS 2012 Update 2 (as it had messed up my source control, I couldn't check anything in). After doing a system restore to an earlier date I couldn't open the add-reference dialog in VS 2012. I hunted for this DLL on disk but it was gone, so I copied it from another machine, added it to the GAC and voila, I'm back up and running again.
回答4:
On my workstation, I don't have the VS Shell Interop DLL, since I don't have Visual Studio SDK installed. To perform this feat, you'd need to grab SDK from Download Center -> Microsoft Visual Studio 2012 SDK. I bet the problem will go away once it's installed.
To really troubleshoot this, I would attach with another Visual Studio or some other debugger, and set it to break on first chance of Type Load Exception. Then inspect your call stack and report it here.
来源：https://stackoverflow.com/questions/15986541/unable-to-add-reference-in-visual-studio-2012-referencemanagerpackage