I recently installed Graphviz and Cogre to make UML diagrams in Emacs. Though when I run cogre-uml-quick-class with the Class name, it says "Layout engine failed. You need to install Graphviz".
The problem is I have installed Graphviz and it is working properly, I have tried making sample graphs and compiling them in graphviz dot mode and I have graphviz-dot-mode.el in my load path.
I added this to my .emacs file
(add-to-list 'load-path "~/.emacs.d/cedet/srecode") (add-to-list 'load-path "~/.emacs.d/cedet/cogre") (add-to-list 'load-path "~/.emacs.d/elpa/graphviz-dot-mode-20150525.1000") (load-file "~/.emacs.d/elpa/graphviz-dot-mode-20150525.1000/graphviz-dot-mode.el")
I'm using Emacs 24.4 on Windows 8.1
Graphviz - http://www.graphviz.org/
Any help is appreciated.