Hey! it looks like the error is caused by a plugin the error exit code 5 is usualy because of a plugin error. In this case it looks like the “CoolDownManager” and “MeleeTrace” and as far as google translates “Sistem belirtilen dosyayı bulamıyor” “The system can not find the specified file.”. Could you try opening an empty project and try to package with these plugins or perhaps update or reinstall them?
Cheers!
"LogDirectoryWatcher:Warning: Failed to begin reading directory changes for …/…/…/Engine/Plugins/Marketplace/CoolDownManager/Content/. Error: Sistem belirtilen dosyayı bulamıyor. (0x00000002) LogDirectoryWatcher:Warning: Failed to begin reading directory changes for …/…/…/Engine/Plugins/Marketplace/MeleeTrace/Content/. Error: Sistem belirtilen dosyayı bulamıyor. (0x00000002) "