I modded GTA 5 for the first time ever tonight. I downloaded a mod menu and some avatar mods. When I tried injecting the files it said “Invalid stfs package” . I do not know if I’m doing something wrong but please help me.
Welcome to the community!
Verify that your Profile and Device IDs match those of YOUR original save/profile. If you have any other questions, I have linked a thread with the issue you are having.
Refer to this thread: Horizon "Invalid STFS Package" and "Cyclic Redundancy Check" Error?.
If you need additional assistance, please post back with your questions and I’ll try and get back to you as soon as I can.