Petri Sirkkala posted a comment on ticket #194

I have the exact same error as @Vijay Aravamudhan net.sourceforge.schemaspy.util.Dot$DotFailure: 'dot -Tpng:gd xxxx/diagrams/summary/relationships.real.compact.dot -oxxxx/diagrams/summary/relationships.real.compact.png -Tcmapx' failed with return code 139