cannot open shared object file: No such file or directory

I got below error while i tried to run my application in fedora

libMagickCore.so.2: cannot open shared object file: No such file or directory – /usr/lib/ruby/gems/1.8/gems/rmagick-2.8.0/lib/RMagick2.so

To get solved of this error i executed

ldconfig /usr/local/lib