Visual Studio Package project having issue

Hi,

I had a Visual studio Package project in VS2013. I have opened that project in VS2015 and its get migrated to 2015, since its a VSIX project , i have set the following path in in Start external program tab of Debug C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\devenv.exe.

now am trying to execute the project but each time the experimental instance VS2015 get restarted and i cannot debug or test it from source. So what was wrong with this process? what i did wrong?

Thanks,

Kani