vsix installer: installation failed fix

Описание

Fix for vsix installer: installation failed error. If you get this error, this will just might fix it. If it still doesn't work, try opening it with devenv.exe, or just choose Visual Studio 2015(or appropriate version) from the list of applications. If it still doesn't work, try these solutions on superuser::
https://superuser.com/questions/73675/how-do-i-install-a-vsix-file-in-visual-studio