hello I use TGS 2010 with SP1, on server side and client side i succesfully deployed Custom Controls, but when i tring to use MultiValueControll of field i have this error:

MultipleValue contains a value that is not supported by mulitple value control because is is either empty or dose not property separate its valuse by enclosing them square brackets.

Files contains string represent in list

I have all files in path: C:\ProgramData\Microsoft\Team Foundation\Work Item Tracking\Custom Controls\10.0

How to resolve this problem??