Error - Unable to find `dot` command of the GraphViz package
Solution 1:
I had this problem when generating PHPDoc, during the "Transform analyzed project into artifacts"-phase. I solved this problem by executing the following command
sudo apt-get install graphviz
Solution 2:
I tried installing it using PEAR.
sudo pear install Image_GraphViz
I ended up just upgrading (practically) EVERYTING and it worked.
apt-get --fix-missing
sudo apt-get install php-pear --fix-missing
sudo apt-get install php-pear
sudo apt-get install php5-xsl
sudo apt-get update
Not sure what exactly did the trick, but it works now.