I asked the Steam Forums already, thought they couldnt help me at all.(They offered some advice but nothing worked)
I live in Europe and therefor, my Keyboard differs from the American one.
To open up the Dev Console in gmod, I need to press the “~” key, but this is imposible as this isnt a single key and more a combination.
Now I tryed to change the launch options with
+bind “F12” “toggleconsole”
But this didnt worked.
Than I edited the config.cfg file and trade the "bind “
" "toggleconsole"" with a "bind "F12" "toogleconsole"" (through Editor) and safed it. Launched the game and pressed F12 without any Dev.Console showing up. Went back to the config file and found out, that the bind for toggleconsole is again "”. Apperently, Gmod always rewrite the config file after every launch, so does anyone know how to fix this?
PS : Sorry for my english grammar.
E: Yes, Dev. Console is enabled in advanced Options.