id summary reporter owner description type status priority milestone component version severity resolution keywords cc difficulty ghcversion platform 597 non-exhaustive patterns when trying to install base guest "I was trying to install regex-dfa. I should mention that I have library profiling enabled in my cabal-install config. So when a dependency claims to be hidden I usually just reinstall it and everything works. Here, I tried that and base showed up as a dependency (shouldn't I have the profiled version of base already?), and when I tried to cabal install base, I get a funny error. Transcript below (note that I've selected 1.6.0.2 from the version drop down, but my version is actually 1.6.0.3, but isn't in the list). My GHC version is also not in the lits. I have 6.10.4. {{{ $ cabal --version cabal-install version 0.6.2 using version 1.6.0.3 of the Cabal library $ cabal install regex-dfa Resolving dependencies... [1 of 1] Compiling Main ( /var/folders/s-/s-WdqsnuGFyUGEeXB-+sZk+++TI/-Tmp-/regex-base-0.93.18737/regex-base-0.93.1/Setup.hs, /var/folders/s-/s-WdqsnuGFyUGEeXB-+sZk+++TI/-Tmp-/regex-base-0.93.18737/regex-base-0.93.1/dist/setup/Main.o ) Linking /var/folders/s-/s-WdqsnuGFyUGEeXB-+sZk+++TI/-Tmp-/regex-base-0.93.18737/regex-base-0.93.1/dist/setup/setup ... Configuring regex-base-0.93.1... Warning: No 'build-type' specified. If you do not need a custom Setup.hs or ./configure script then use 'build-type: Simple'. Preprocessing library regex-base-0.93.1... Building regex-base-0.93.1... [1 of 4] Compiling Text.Regex.Base.RegexLike ( Text/Regex/Base/RegexLike.hs, dist/build/Text/Regex/Base/RegexLike.o ) [2 of 4] Compiling Text.Regex.Base.Context ( Text/Regex/Base/Context.hs, dist/build/Text/Regex/Base/Context.o ) [3 of 4] Compiling Text.Regex.Base ( Text/Regex/Base.hs, dist/build/Text/Regex/Base.o ) [4 of 4] Compiling Text.Regex.Base.Impl ( Text/Regex/Base/Impl.hs, dist/build/Text/Regex/Base/Impl.o ) [1 of 4] Compiling Text.Regex.Base.RegexLike ( Text/Regex/Base/RegexLike.hs, dist/build/Text/Regex/Base/RegexLike.p_o ) [2 of 4] Compiling Text.Regex.Base.Context ( Text/Regex/Base/Context.hs, dist/build/Text/Regex/Base/Context.p_o ) [3 of 4] Compiling Text.Regex.Base ( Text/Regex/Base.hs, dist/build/Text/Regex/Base.p_o ) [4 of 4] Compiling Text.Regex.Base.Impl ( Text/Regex/Base/Impl.hs, dist/build/Text/Regex/Base/Impl.p_o ) ar: creating archive dist/build/libHSregex-base-0.93.1.a ar: creating archive dist/build/libHSregex-base-0.93.1_p.a Installing library in /Users/dagit/.cabal/lib/regex-base-0.93.1/ghc-6.10.4 Registering regex-base-0.93.1... Reading package info from ""dist/installed-pkg-config"" ... done. Writing new package config file... done. Downloading regex-dfa-0.91... [1 of 1] Compiling Main ( /var/folders/s-/s-WdqsnuGFyUGEeXB-+sZk+++TI/-Tmp-/regex-dfa-0.918737/regex-dfa-0.91/Setup.hs, /var/folders/s-/s-WdqsnuGFyUGEeXB-+sZk+++TI/-Tmp-/regex-dfa-0.918737/regex-dfa-0.91/dist/setup/Main.o ) Linking /var/folders/s-/s-WdqsnuGFyUGEeXB-+sZk+++TI/-Tmp-/regex-dfa-0.918737/regex-dfa-0.91/dist/setup/setup ... Configuring regex-dfa-0.91... Warning: No 'build-type' specified. If you do not need a custom Setup.hs or ./configure script then use 'build-type: Simple'. Preprocessing library regex-dfa-0.91... Building regex-dfa-0.91... Text/Regex/DFA/Common.hs:6:7: Could not find module `Data.IntMap': it is a member of the hidden package `containers-0.2.0.1' Use -v to see a list of the files searched for. cabal: Error: some packages failed to install: regex-dfa-0.91 failed during the building phase. The exception was: exit: ExitFailure 1 [04:55 PM][dagit@apricot~/local-data/regex-tests/darcs.net-regex-base] $ cabal install containers-0.2.0.1 Resolving dependencies... No packages to be installed. All the requested packages are already installed. If you want to reinstall anyway then use the --reinstall flag. [04:55 PM][dagit@apricot~/local-data/regex-tests/darcs.net-regex-base] $ cabal install containers-0.2.0.1 --reinstall Resolving dependencies... Downloading containers-0.2.0.1... Configuring containers-0.2.0.1... Preprocessing library containers-0.2.0.1... Building containers-0.2.0.1... Data/IntMap.hs:182:7: Could not find module `Data.Data': it is a member of the hidden package `base' Use -v to see a list of the files searched for. cabal: Error: some packages failed to install: containers-0.2.0.1 failed during the building phase. The exception was: exit: ExitFailure 1 [04:55 PM][dagit@apricot~/local-data/regex-tests/darcs.net-regex-base] $ cabal install base Resolving dependencies... cabal: Distribution/Client/Dependency/TopDown.hs:170:37-73: Non-exhaustive patterns in lambda [04:55 PM][dagit@apricot~/local-data/regex-tests/darcs.net-regex-base] $ cabal install base Resolving dependencies... cabal: Distribution/Client/Dependency/TopDown.hs:170:37-73: Non-exhaustive patterns in lambda }}}" defect new normal cabal-install-0.16 cabal-install tool 1.6.0.2 minor easy (<4 hours) 6.10.1