Resolving dependencies...
Configuring dotgen-0.2...
Building dotgen-0.2...
Preprocessing library dotgen-0.2...
[1 of 1] Compiling Text.Dot         ( Text/Dot.hs, dist/build/Text/Dot.o )

Text/Dot.hs:54:10:
    No instance for (Applicative Dot)
      arising from the superclasses of an instance declaration
    In the instance declaration for ‘Monad Dot’
Failed to install dotgen-0.2
cabal: Error: some packages failed to install:
dotgen-0.2 failed during the building phase. The exception was:
ExitFailure 1
graphmod-1.1.2 depends on dotgen-0.2 which failed to install.