Resolving dependencies... Configuring cmdargs-0.10.14... Configuring old-locale-1.0.0.7... Building cmdargs-0.10.14... Building old-locale-1.0.0.7... Installed old-locale-1.0.0.7 Configuring text-1.2.2.1... Building text-1.2.2.1... Configuring old-time-1.1.0.3... Installed text-1.2.2.1 Installed cmdargs-0.10.14 Configuring polyparse-1.12... Building polyparse-1.12... Building old-time-1.1.0.3... Installed old-time-1.1.0.3 Installed polyparse-1.12 Configuring cpphs-1.19.3... Building cpphs-1.19.3... Installed cpphs-1.19.3 Configuring haskell-src-exts-1.19.0... Building haskell-src-exts-1.19.0... Installed haskell-src-exts-1.19.0 Configuring hothasktags-0.3.3... Building hothasktags-0.3.3... Failed to install hothasktags-0.3.3 Build log ( /home/builder/.cabal/logs/hothasktags-0.3.3.log ): cabal: Entering directory '/tmp/cabal-tmp-3638/hothasktags-0.3.3' Configuring hothasktags-0.3.3... Building hothasktags-0.3.3... Preprocessing executable 'hothasktags' for hothasktags-0.3.3... [1 of 1] Compiling Main ( Main.hs, dist/build/hothasktags/hothasktags-tmp/Main.o ) Main.hs:6:1: error: Failed to load interface for ‘Language.Haskell.Exts.Annotated’ Perhaps you meant Language.Haskell.Exts.Syntax (from haskell-src-exts-1.19.0) Language.Haskell.Exts.Pretty (from haskell-src-exts-1.19.0) Language.Haskell.Exts.Build (from haskell-src-exts-1.19.0) Use -v to see a list of the files searched for. cabal: Leaving directory '/tmp/cabal-tmp-3638/hothasktags-0.3.3' cabal: Error: some packages failed to install: hothasktags-0.3.3 failed during the building phase. The exception was: ExitFailure 1