Greetings! i am having problems compiling my first ever game to mobile(android) , so mind me if i do silly questions, or the solution is simple. However i DO tried to solve it by googling the problem and "solution". First of all, yesterday i set up all the things related to compiling a game for testing (F5) on a device. In the whole process i found a little problem only that , however didnt stop me of continuing. The error was while creating the KeyStore, something related to not finding a path to some openSSL.cnf SO like i said, i just let that aside and continued reading the tutorials to set all up the TARGET platform for ANDROID. When i finally set the device (MY phone) i pressed F5 an it ran pretty well! there were minor things that i had to change in code, but that was not an errror itself, so, i ran it like 10 times NO PROBLEMS. SO, then i continued the tutorial and now it was time to COMPILE IT. It said (tutorial) that after compiling, some windows would open to upload the project. SO , ok i disconected the phone and clicked on compile and went doing other stuff on the pc (reading the tutorials or even chatting). But minutes passed and i said "did the window appear at any time while i was doing other stuff? maybe i was distracted" So i searched trying to find the compiled file, i didnt found it, so then i back to GM and clicked on compile again , but NOTHING HAPPENED, and from there iwas like 3 hours trying to make it work, by chaging the runtime version, reinstall GMS2, trying VM and YYC, APK and ABB, and NOTHING. The problem is an unnautorized exception to a Z path: I can still compile for desktop, NO problems. What drives me CRAZY is WHY i could run the game on device, and since i tried to compile, now i cant do any, nor compile , nor play it again in the phone because the same problem occures. What was triggered? PS, before posting this, i checked other threads, and tried what some user said, compiling an empty room it went k, i could do it, the APF file was generated, the device was not connected tho. Then i conected it and tried to complile again, nothign happens. Is that due some cache retated reason? i don even knwo how to delete cache, hwoever this is a diffrente matter.