H.264 can`t create files

[24673583]

Hi,
I use tsMuxerGUI Demux m2ts Primary video stream H.264.
But the stream can`t be Create VES Files.

STEP:
1. I use tsMuxerGui Demux m2ts Primary video stream
2. Open MUI Generator and browse this H.264
3. Choose MPEG4-AVC
4. Create Files
5. Tips Error!!!

why?