Resolving dependencies...
Configuring mtl-2.2.1...
Configuring network-2.6.3.1...
Building mtl-2.2.1...
Building network-2.6.3.1...
Configuring old-locale-1.0.0.7...
Installed mtl-2.2.1
Building old-locale-1.0.0.7...
Installed old-locale-1.0.0.7
Installed network-2.6.3.1
Configuring hslogger-1.2.10...
Building hslogger-1.2.10...
Installed hslogger-1.2.10
Configuring hslogger4j-0.1.1...
Building hslogger4j-0.1.1...
Failed to install hslogger4j-0.1.1
Build log ( /home/builder/.cabal/logs/hslogger4j-0.1.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-24942/hslogger4j-0.1.1'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-24942/hslogger4j-0.1.1/dist/setup/setup.hs, /tmp/cabal-tmp-24942/hslogger4j-0.1.1/dist/setup/Main.o )
Linking /tmp/cabal-tmp-24942/hslogger4j-0.1.1/dist/setup/setup ...
Configuring hslogger4j-0.1.1...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Building hslogger4j-0.1.1...
Preprocessing library hslogger4j-0.1.1...
[1 of 1] Compiling System.Log.Handler.Log4jXML ( haskell/System/Log/Handler/Log4jXML.hs, dist/build/System/Log/Handler/Log4jXML.o )

haskell/System/Log/Handler/Log4jXML.hs:51:1: error:
    Failed to load interface for ‘System.Locale’
    It is a member of the hidden package ‘old-locale-1.0.0.7’.
    Perhaps you need to add ‘old-locale’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-24942/hslogger4j-0.1.1'
cabal: Error: some packages failed to install:
hslogger4j-0.1.1 failed during the building phase. The exception was:
ExitFailure 1