DASHEncoder command line flags #8

Hi I'm trying to execute DASHEncoder as follows:

./DASHEncoder --input=big_buck_bunny.mp4 --video-encoder=x264 --audio-encoder=ffmpegAAC --fragment-size=2000 --dest-directory=./ --segment-size=2000 --mpd-name=bbb.mpd --audio-quality=2,44100,48 --bitrate=300 --folder-prefix=TEST --segment-name=TEST

I'm getting:

==========DASH ENCODER===============
current encoder x264
YES
terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_S_construct null not valid
Aborted

What am I doing wrong?
Also could you please let me know what are arguments are mandatory?

Thank you