Resolving dependencies...
Downloading graph-rewriting-0.7.8...
Configuring graph-rewriting-0.7.8...
Building graph-rewriting-0.7.8...
Preprocessing library graph-rewriting-0.7.8...

GraphRewriting/Graph.hs:7:8:
    Could not find module ‘Control.Monad.State’
    There are files missing in the ‘mtl-2.2.1@mtl_Aue4leSeVkpKLsfHIV51E8’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

GraphRewriting/Graph/Read.hs:10:8:
    Could not find module ‘Prelude.Unicode’
    There are files missing in the ‘base-unicode-symbols-0.2.2.4@baseu_HARyL3klEFABQ7g2MPHMdz’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

GraphRewriting/Graph/Read.hs:13:8:
    Could not find module ‘Control.Monad.Reader’
    There are files missing in the ‘mtl-2.2.1@mtl_Aue4leSeVkpKLsfHIV51E8’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

GraphRewriting/Pattern.hs:9:8:
    Could not find module ‘Control.Monad.List’
    There are files missing in the ‘mtl-2.2.1@mtl_Aue4leSeVkpKLsfHIV51E8’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.

GraphRewriting/Pattern.hs:10:8:
    Could not find module ‘Control.Monad.Identity’
    There are files missing in the ‘mtl-2.2.1@mtl_Aue4leSeVkpKLsfHIV51E8’ package,
    try running 'ghc-pkg check'.
    Use -v to see a list of the files searched for.
Failed to install graph-rewriting-0.7.8
cabal: Error: some packages failed to install:
graph-rewriting-0.7.8 failed during the building phase. The exception was:
ExitFailure 1