解決This version of Visual Studio is unable to open the following projects

用unity開啟vs2013之後，在開啟其它專案就會卒。
報錯如下:
This version of Visual Studio is unable to open the following projects. The project types may not be installed or this version of Visual Studio may not support them.
For more information on enabling these project types or otherwise migrating your assets, please see the details in the “Migration Report” displayed after clicking OK.

在cmd裡面進入到2013目錄，然後輸入 devenv /Setup，再開啟軟體就好了。
貌似是把環境改為2013