I downloaded PTVS RC today and installed it. After restarting VS, there was an error about importing Python Tools that said the following and solutions were not being loaded:
No exports were found that match the constraint
Based on this post here at SO, i renamed my ComponentModelCache file. Now although VS loads old solutions, all I see is an Attach button and no Run/Debug button. For new projects, it works fine. I am using Visual Studio 2013 Professional Edition. Any help?