The 'HTMLPackage' package did not load correctly

Question

I cannot open the visual studio 2013 suddenly, it prompts the following message

The 'HTMLPackage' package did not load correctly
...
Continue to show this error message?

After I click Yes button, it cannot load solution. In addition, it show the following error message and cannot close the Visual Studio properly

Answer 1

Hi, @Tony

Welcome to Microsoft Q&A!

You can try to delete all files in this folder:
C:\Users\<your users name>\AppData\Local\Microsoft\VisualStudio\12.0\ComponentModelCache

You can also try to start Visual Studio in Developer Command Prompt for VS with the following command:
devenv.exe /clearcache
devenv /updateconfiguration

Sincerely,
Peng
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