Error about “Extracting features with OpenCV”

when I use the command line：
./SMILExtract -C config/audiovisual/audiovideo.conf\
  -V VIDEO_FILE -A AUDIO_FILE -N NAME -a AGE\
  -g GENDER -e ETHNICITY -O VIDEO_ARFF -P AUDIO_ARFF

It raises a problem：(ERR) [0] commandlineParser: parse: unknown option '-V' on commandline!
how can I fix it？the config profile set like this：“filename = \cm[videofile(V){test.avi}:name of input file]”