Mallekot,
There is a chance that the xdc tools that ROV is set to use is different from the one that version of TI-RTOS is using.
In CCS, select Window-> preferences. On the side bar, select Code Composer Studio->RTSC and you should have this window
Make sure the XDCtools version selected is the same as the one you're using to build your project. Let me know if that works.
Moses