Missing imports in Data.Graphviz
This program gives undefined classes:
module test
import Data.Maybe, Data.Graphviz
Start = Digraph "" [] [] Nothing
Error [Data.Graphviz.dcl,341,==]: == class undefined
Error [Data.Graphviz.dcl,355,==]: == class undefined
Error [Data.Graphviz.dcl,366,==]: == class undefined
Error [Data.Graphviz.dcl,383,==]: == class undefined
Error [Data.Graphviz.dcl,413,==]: == class undefined
Error [Data.Graphviz.dcl,424,==]: == class undefined
Edited by Clean Importer