First of all I would like to say that I already tried all the solutions I could find on the internet, including Unable to Activate Windows Store App
I recently upgra
I had the same issue with a Windows Store App after moving some files around. I ended up opening an older file (as Admin) to see if it would run and found that it did. I then returned to the file that would not and it ran also. I believe opening the older file (as Admin) reset the paths for development and the permissions. Hope this helps.