Installing Imagemagick on Ubuntu - HEROKU

[dt59]

Hello, please have been stuck on this error for a long time now. and since I don't have the administrative privilege, I find it difficult to resolve the problem myself, I have read all I could but all to no avail.

HERE IS THE ERROR.
identify: error while loading shared libraries: libdjvulibre.so.21: cannot open shared object file: No such file or directory

HERE IS THE COMMAND AM RUNNING
identify --version

Thanks

[rodlie]

You have a broken (ImageMagick) installation/package. Install the required dependency (djvu) or build ImageMagick yourself.