CMU Mocap Browser and MakeHuman retargeting

CMU Mocap browser is able to download and play mocap data of CM-University. That’s fine and works.

Next step for me would be to retarget this to makehuman (mhx) rig by using mhx mocap. Unfortunately the retarget process breaks by pyhton error message ('none type object has no attribute ‘action’ '. The file downloaded from cmu mocap browser is an asf-file.

Is there a possibility to retarget it with makehuman?
If not, exist there a way in linux to convert asf-file to bvh?