For any tool related issues, I would recommend contacting your Mentor support engineer for help.
Questasim 10.0b is almost 3 years old. I would recommend using the latest release available on SupportNet. UVM was in the very early stages of development when this version was released. The latest release of Questasim will have better support.
Is there a specific reason you are trying to compile UVM instead of using the pre-compiled version that is provided with Questa?