Fallout New Vegas not working. Please help!!!!

[Rainfire]

So I recently got a new PC, I've been trying to get Fallout New Vegas with all my mods to work again but I've been getting really frustrated with the result of it not working. At times, fallout would crash with an error saying, "missing master, check your load order" and other times the menu wouldn't pop up at all (continue, load, new, etc). I checked on FNVEdit and it says that Project Nevada is missing master FalloutNV.esm and I already tried validating my game file but nothing has worked so far. I also am not using any mod organizers at all, I activate my mods via the data files from the game menu. Please help!

 

[Vynavill]

That's what happens when you don't use a mod manager...mess up a little, insignificant single detail and stuff stops working entirely. 😉

The error message looks clear enough; you're either missing that master file entirely, you're having a load order issue with it or something happened to it (corrupted, can't be read).

First of all, make sure the FalloutNV.esm gets detected and loaded before anything else in FNVEdit, if it provides any load order setting function; if it's already on top of the load order (lowest possible position), if it isn't detected at all or if it doesn't work, revert to a vanilla installation and try launching the game to see if it actually works like that at least.
To do so, if you don't want to lose your mods, make a copy of your current data folder, then delete it and run local cache validation through Steam. It'll practically redownload the entire game and get you back to default.

I HIGHLY suggest you to use a mod manager next time tho...
Nexus Mod Manager is fine, Mod Organizer is better IMO (although I'm not sure if it works with other Bethesda games and not only Skyrim), but it doesn't matter as long as you use one, as the organization advantage and the risk reduction they bring is just too good to pass up.

Good luck!

 

[Rainfire]

Thanks Vynavill! I actually tried out the Mod Organizer and ran the game through there and surprisingly worked! Thanks again!