GUIStudioMDL recompile issue

[Giovanikc]

Hi guys i'm trying to compile my hat with jigglebones and i get this error from GUIStudioMDL:

http://i1127.photobucket.com/albums/l637/Giovanikc/ScreenShot012.jpg


I tryed many tutorials and can't realize what happening. If anyone can help me I'll be very thankfull.