I resetted the game configurations for the Hammer Editor and the CS:S models and all the others work perfectly fine, I'll try and see if I can add the Half Life 2 FGD.

---Edit---
Everything seems to be working apart from one custom texture from Gmod, I'll just replace it. Thanks for the help.

Hey, I've been searching google for an answer on this question but couldn't find any. I'm working on a custom map for TTT and when I try to add weapons it shows these errors, like big red letters saying ERROR. When I test my map it works perfectly but in Hammer it's a big bunch of Error pancakes.

- I have Counter-Strike Source installed.
- I have played it more than once.
- I added the TTT.fgd to the Game Data Files, cstrike.fgd is in the list too.
- I tried opening the map in Hammer Editor with the Counter-Strike Source config but also there it showed a big bunch of errors.

Is there a way to solve it?

My friend hasn't got this problem