(so when i start gta 4 it loads unusually fast.it opens the menus in les then 5 seconds)

 

so i walk out of the safehouse and i get this error messege: "gta iv fatal error invalid resource decected"

and it just crashes. i tried making a new savegame and updating the game but nothing works!

 

does someone know a fix for this problem?

 

The error is  most likely an RC20 error. One of the mods your are using has duplicated materials or has too many misc in it. 

The error is  most likely an RC20 error. One of the mods your are using has duplicated materials or has too many misc in it. 

how do i find out wich one it is?

Remove all mods and install them one by one. Insert the backups you made and start over. Very important that you install them one by one and try the game after each mod. 

Remove all mods and install them one by one. Insert the backups you made and start over. Very important that you install them one by one and try the game after each mod. 

okey i will try that thanks!

No problem :)