#686: cabal install - Codec.Compression.Zlib: incorrect header check ---------------------------------+------------------------------------------ Reporter: Monsikos | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: cabal-install tool | Version: 1.8.0.2 Severity: normal | Keywords: Zlib Difficulty: unknown | Ghcversion: 6.12.1 Platform: Windows | ---------------------------------+------------------------------------------ Comment(by duncan): Are you absolutely sure that you are running cabal-install version 0.8.2? Does running `cabal --version` report the expected version? I ask because it is unfortunately all too easy to accidentally get into the situation where there are two versions of cabal-install installed and the first one on the Windows %PATH% is often the older one. If you are definitely running version 0.8.2, does this happen for all packages or just some? Does trying to unpack the .tar.gz package manually (eg using tar command line, or WinZip) fail too? BTW, you can see where cabal is getting the .tar.gz file from, just run with the -v flag and look for the line where it mentions extracting (which is presumably also where it'll fail). -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/686#comment:1 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects