Resolving dependencies...
Downloading Emping-0.2...
[1 of 1] Compiling Main             ( /tmp/Emping-0.2-23960/Emping-0.2/Setup.hs, /tmp/Emping-0.2-23960/Emping-0.2/dist/setup/Main.o )
Linking /tmp/Emping-0.2-23960/Emping-0.2/dist/setup/setup ...
Configuring Emping-0.2...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Building Emping-0.2...
Preprocessing executable 'emping' for Emping-0.2...

on the commandline: Warning:
    -fglasgow-exts is deprecated: Use individual extensions instead

src/Abduce.hs:10:8:
    Could not find module `Data.Tree'
    It is a member of the hidden package `containers-0.5.0.0'.
    Perhaps you need to add `containers' to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
Failed to install Emping-0.2
cabal: Error: some packages failed to install:
Emping-0.2 failed during the building phase. The exception was:
ExitFailure 1