Couldn’t start:

while testing my ue4 game i wanted to download it only when i removed the .exe file from the package folder and put my other folder, then i started the game on a then i got an error saying Couldn’t Start: “ …” create process() returned 2 does anyone know how I can fix this

Umm… You can’t just pluck the executable from your packaged game and expect it to work on its own. All of the content for the game (assets, textures, models, etc.) is stored outside of the exe. So, you must either return the exe file to where you took it from, or repackage your game.