I need help with a GUIstudioMDL error!

[Mibella]

I recently tried to create a ragdoll model in Gmod but when I try to compile my .qc file in GUIstudioMDL it gives me this error:

[B]writing C:\Program Files (x86)\Steam\steamapps\common\team fortress 2\tf\models/C:\Users\pascal\Desktop\models\mdldecompiler.mdl:
Error opening C:\Program Files (x86)\Steam\steamapps\common\team fortress 2\tf\models/C:\Users\pascal\Desktop\models\mdldecompiler.mdl! (Check for write enable)[/B]

I don't know how to change the writing path, I can't create a [B]C:[/B] folder in [B]models[/B] and google didn't help me to find a solution. Anyone know how to solve this problem?

(Sorry if my english is bad, I'm french)

[Rubat]

Don't use GUIstudioMDL, use the standard studiomdl.exe