Unable to activate windows store app the app didn't start

I found a solution. The problem was that the drive I was working on was encrypted (TrueCrypt). Moving the output folder to an unencrypted drive solved the problem.

I had the same Error and tried after loading the SQLite Package for WP 8.1 some things above:

not working:

• Clean and Rebuild
• Restart Computer/Phone

what did the deal (for me)

• I put Platform Target under Properties -> Build to ARM instead of x86

Hopefully this might help somebody else facing this ridiculously informative Errormessage.

If switching from x86 to x64, make sure your Project Properties Platform Target and Configuration Platform are BOTH set to X64.Hint you need to change to x64 debugging in the Build menu/Configuration Manager dialog to get the Configuration Platform in Project Properties to update.

This caused the activation error problem to be resolved for me

HTH

Robert