Hi, Long time problem, now with a new version of GHC and Cabal, and still a problem... C:\Documents\Uni\uniplate>runhaskell Setup sdist -v3 Building source dist for uniplate-1.0.1... Creating dist\src\uniplate-1.0.1 (and its parents) Creating dist\src\uniplate-1.0.1 (and its parents) Creating dist\src\uniplate-1.0.1\.\Data\Generics (and its parents) copy .\Data\Generics\Uniplate.hs to dist\src\uniplate-1.0.1\.\Data\Generics\Unip late.hs copy .\Data\Generics\UniplateOn.hs to dist\src\uniplate-1.0.1\.\Data\Generics\Un iplateOn.hs copy .\Data\Generics\Biplate.hs to dist\src\uniplate-1.0.1\.\Data\Generics\Bipla te.hs copy .\Data\Generics\PlateDirect.hs to dist\src\uniplate-1.0.1\.\Data\Generics\P lateDirect.hs copy .\Data\Generics\PlateTypeable.hs to dist\src\uniplate-1.0.1\.\Data\Generics \PlateTypeable.hs copy .\Data\Generics\PlateData.hs to dist\src\uniplate-1.0.1\.\Data\Generics\Pla teData.hs copy .\Data\Generics\PlateInternal.hs to dist\src\uniplate-1.0.1\.\Data\Generics \PlateInternal.hs Creating dist\src\uniplate-1.0.1 (and its parents) copy LICENSE to dist\src\uniplate-1.0.1\LICENSE Creating dist\src\uniplate-1.0.1 (and its parents) copy uniplate.htm to dist\src\uniplate-1.0.1\uniplate.htm Preprocessing library uniplate-1.0.1... Creating dist\src\uniplate-1.0.1 (and its parents) copy Setup.hs to dist\src\uniplate-1.0.1\Setup.hs copy uniplate.cabal to dist\src\uniplate-1.0.1\uniplate.cabal ("C:\\bin\\tar.exe",["-C","dist\\src","-czf","dist\\uniplate-1.0.1.tar.gz","unip late-1.0.1"]) C:\bin\tar.exe: Cannot use compressed or remote archives C:\bin\tar.exe: Error is not recoverable: exiting now Calling tar then gzip would make this work. This bug stops me from updating my Hackage packages which won't work with GHC 6.8.1. Thanks Neil