Despite the alike existing threads here on SO, my problem is somehow different,
I have an application that I made, I deploy it, works fine. I copy the same application solution, make some changes on it to create an other application that have almost the same logic as the first one (can't re-code everything from scratch), deploy it, and I receive this :
Severity Code Description Project File Line Suppression State Error Error : DEP0001 : Unexpected Error: Install failed. Please contact your software vendor. (Exception from HRESULT: 0x80073CF9) MyApplication
I believe this is cause by the fact that the system is identifying it as an application that was already deployed, I tried to delete any prints left by the first solution, deleted the content of the bin and the obj folders, but didn't help.
Please what's the solution for this problem