Resolving dependencies...
Configuring fcg-0.0.0...
Building fcg-0.0.0...
Failed to install fcg-0.0.0
Build log ( /home/builder/.cabal/logs/ghc-8.2.2/fcg-0.0.0-6V6NLhKDQcqGzqhzJzKwBr.log ):
cabal: Entering directory '/tmp/cabal-tmp-5495/fcg-0.0.0'
Configuring fcg-0.0.0...
Preprocessing executable 'fcg' for fcg-0.0.0..
Building executable 'fcg' for fcg-0.0.0..
[1 of 1] Compiling Main             ( app/Main.hs, dist/build/fcg/fcg-tmp/Main.o )

app/Main.hs:1:8: error:
    Could not find module ‘Prelude’
    Use -v to see a list of the files searched for.
  |
1 | module Main (main) where
  |        ^^^^
cabal: Leaving directory '/tmp/cabal-tmp-5495/fcg-0.0.0'
cabal: Error: some packages failed to install:
fcg-0.0.0-6V6NLhKDQcqGzqhzJzKwBr failed during the building phase. The
exception was:
ExitFailure 1