Resolving dependencies...
Configuring network-2.6.3.1...
Configuring mtl-2.2.1...
Building mtl-2.2.1...
Building network-2.6.3.1...
Configuring text-1.2.2.1...
Installed mtl-2.2.1
Building text-1.2.2.1...
Installed network-2.6.3.1
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Installed parsec-3.1.11
Configuring network-uri-2.6.1.0...
Building network-uri-2.6.1.0...
Installed network-uri-2.6.1.0
Configuring HTTP-4000.3.4...
Building HTTP-4000.3.4...
Installed HTTP-4000.3.4
Downloading pb-0.1.0...
Configuring pb-0.1.0...
Building pb-0.1.0...
Failed to install pb-0.1.0
Build log ( /home/builder/.cabal/logs/pb-0.1.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-26963/pb-0.1.0'
Configuring pb-0.1.0...
Building pb-0.1.0...
Preprocessing executable 'pb' for pb-0.1.0...
[1 of 2] Compiling Paste            ( Paste.hs, dist/build/pb/pb-tmp/Paste.o )

Paste.hs:3:1: error:
    Failed to load interface for ‘Network.URI’
    It is a member of the hidden package ‘network-uri-2.6.1.0’.
    Perhaps you need to add ‘network-uri’ 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-26963/pb-0.1.0'
cabal: Error: some packages failed to install:
pb-0.1.0 failed during the building phase. The exception was:
ExitFailure 1