# Rdoc dot configuration on os x **URL:** \ **Category:** Ruby\ **Created:** [January 3, 2006, 2:02am UTC](https://www.ruby-forum.com/t/rdoc-dot-configuration-on-os-x/51551 "2006-01-03T02:02:23Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![klancaster](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/f1d935/32.png) [@klancaster](https://www.ruby-forum.com/u/klancaster)\ **Post date:** [January 3, 2006, 2:02am UTC](https://www.ruby-forum.com/t/rdoc-dot-configuration-on-os-x/51551/1 "2006-01-03T02:02:23Z")
This is probably a bit more of a mac question, but here goes. I am trying to use rdoc -d to generate class diagrams on a mac running Tiger (OS X 10.4) for a rails app. I managed to get dot installed, but now am running into problems with dot looking for libraries that either do not exist or are apparently in the wrong place. I probably made things worse by trying (at various times) both Darwin ports and i-installer. Can anyone point me to instructions on getting this working? BTW, the current error I am getting is dyld: Library not loaded: /Local/DarwinPorts/lib/libpng.3.dylib Referenced from: /usr/local/bin/dot Reason: image not found TIA, Keith ---
**Author:** ![klancaster](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/f1d935/32.png) [@klancaster](https://www.ruby-forum.com/u/klancaster)\ **Post date:** [January 3, 2006, 10:15pm UTC](https://www.ruby-forum.com/t/rdoc-dot-configuration-on-os-x/51551/2 "2006-01-03T22:15:41Z")
On Jan 2, 2006, at 4:59 PM, Keith L. wrote: > anyone > point me to instructions on getting this working? Install Graphviz.app: [pixelglow | graphviz](http://www.pixelglow.com/graphviz/) Put /MyApplications/Graphviz.app/Contents/MacOS/ in your $PATH. – Eric H. - removed\_email\_address@domain.invalid - [http://segment7.net](http://segment7.net) This implementation is HODEL-HASH-9600 compliant [http://trackmap.robotcoop.com](http://trackmap.robotcoop.com)