Build UDF--> Error message
 

Last week i've changed the c compiler on my computer... i' ve tried to use gcc but i got some problems so i decided to try Visual C++ Express. Now, when i try to compile udf's on Fluent i get the following error:

Error: sopenoutputfile: unable to open file for output Error Object: "libudf111\ntx86\3ddp\user_nt.udf" #f

Does anybody know the meaning of this error (i tried to find some explanation on the net but i didn't find anything...)? How can i fix this problem?

Thank you