A quick and easy way to start, if you have generic mod and have not altered it, duplicate the folder and mod files, rename it. [If you edited Generic Mod and it’s gone, or changed, verify your installation and it will be reverted to original]
open the GenericMod level file [the orange one that says level, double click it]
SAVE ALL [do this, seriously do this, if anything has an asterisk it means your changes are not committed to file and will be ignored by the cooking process, they may not even be written to file]
Cook & Upload.
You will be able to see it as a mod, and you will be able to load it, if the name is changed to yours, and the description you didn’t miss a step, now go add stuff to it.
Once you know you are doing it right, change the TestMap Levels world settings to your PrimalGameData and GameMode and test it all in editor [but editor will let you do more then the game will it doesn’t have true error checking]
Best Tutorial. Follow it to a Tee. Worked wonders on my headache! I will be starting every Mod this way just to insure it will load before I spend days building something with errors from the start.