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

Question

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

Answer 1

I've tried all the solutions found on the net and none applied to my case, not even this one.

The only way I could make it work was changing the Package Name in the appxmanifest. This made me think there must be some leftovers somewhere around with the old package name, that are either corrupted or inaccessible because of some permissions issues.

It might be just a coincidence but the problem appeared twice after I tried using the app verifier (appverif.exe)

Now I reassociated my app to a store app package and things seem to continue working...