Visual Studio error “Object reference not set to an instance of an object” after install of ASP.NET and Web Tools 2015

Maybe this helps:

  1. Delete the contents from the following folders:
    1. C:\Users\%userprofile%\AppData\Local\Microsoft\VisualStudio
    2. C:\Users\%userprofile%\AppData\Local\Microsoft\VSCommon
  2. Sometimes, you need to go to:
    1. [x64] C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE
    2. [x86] C:\Program Files\Microsoft Visual Studio 14.0\Common7\IDE

and run devenv /resetuserdata.

Expect, that all of your user settings such as Visual Studio layout, linked Microsoft account or start page might disappear.

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