C3030   Write error to OBJ

     Explanation:  The compiler created an object file but cannot write
     to the file.  This error can occur if you run out of disk space during
     the compile.

     Action:  Some suggestions to resolve the problem are:

     1. Free some disk space and recompile.

     2. Direct the compiler to write the object (.OBJ) file to another drive
        using the /O option.