Read video using VideoReader function in Matlab? -

i want read video folder , extract frames it.i used vidoereader function.but gives error.my code shown below along error.

 mov=videoreader('11.mp4');  vidframes=read(mov);  nframes=mov.numberofframes;  i=1:nframes      imshow(vidframes(:,:,i),[]);  end

and error show given below

error using videoreader/init file not appear have video data.

error in videoreader (line 147) obj.init(filename);

error in video (line 7) mov=videoreader('11.mp4');

i think matlab version related problem. faced same problem when using matlab 2013a. however, when changed matlab 2014b problem disappeared.

GHI