error: kino export to MPEG

[Yuandan Zhang]

when I export a avi video to MPEG, I got a pop-up error warning as:

Error writing to KINO/MJPEG audio filter - aborting.

The command line error messages are:

>>> Export::start()
>> Export::activate()
>>> ExportMJPEG::startExport
>>> Generated video pipe 'yuvdenoise -F -f | mpeg2enc -v 0 -f 0 -I 0 -n
p -a 2 -o '/media/USBG/video/tamx'.mpv'
>>> Generated audio pipe '|mp2enc -v 0  -o '/media/USBG/video/tamx'.mp2'
sh: mp2enc: command not found
sh: yuvdenoise: command not found
sh: mpeg2enc: command not found

(kino:26719): Gtk-WARNING **: Ignoring the separator setting

how to fix it?

Thanks, Yuandan