How to fix this error on megui latest 2050 x 86 version

after instalation and when i add video file i see this:
Megui encountered a fatal error and may not be able to proceed. Reason: method not found. System.string MediaInfoWrapper.VideoTrack.get_scantypestring
what i should do to fix this?
Answer #1
Have you looked for this issue at doom9 ?
http://forum.doom9.org/showthread.php?p=1402243