You need to provide more information to get help, i.e. the real compilation errors. This is just an indication by Abaqus to let you know that something has gone wrong while compiling and linking your code to Abaqus. First check that you have installed all the required software with exact same version as pointed out in the manual. Then, try to run Abaqus test for User Subroutine. If all of these are done, try to find the real errors of the compilation (maybe in the error files?) and report them here, so I can help.