Resolving dependencies... Configuring split-0.2.3.1... Building split-0.2.3.1... Installed split-0.2.3.1 Downloading print-debugger-0.0... Configuring print-debugger-0.0... Building print-debugger-0.0... Failed to install print-debugger-0.0 Build log ( /home/builder/.cabal/logs/print-debugger-0.0.log ): cabal: Entering directory '/tmp/cabal-tmp-2508/print-debugger-0.0' Configuring print-debugger-0.0... Building print-debugger-0.0... Preprocessing library print-debugger-0.0... cabal: can't find source for StackTraceDebug in ., dist/build/autogen cabal: Leaving directory '/tmp/cabal-tmp-2508/print-debugger-0.0' cabal: Error: some packages failed to install: print-debugger-0.0 failed during the building phase. The exception was: ExitFailure 1