Hello community! I'm trying to install Yesod on a freshly setup openSUSE 13.1 virtual machine! I installed the Haskell Platform and three other (ghc) packages required (for yesod-bin), from the standard online repositories! Then i issued: cabal update cabal install cabal-install (because cabal told me so) export PATH=$HOME/.cabal/bin:$PATH cabal install yesod-platform After churning for a while, that last command stated that some packages, more precisely the Esqueleto package, failed to install. I tried to install it alone and got these error messages: -- Begin Command Output Resolving dependencies... Configuring esqueleto-1.3.5... Building esqueleto-1.3.5... Preprocessing library esqueleto-1.3.5... [1 of 4] Compiling Database.Esqueleto.Internal.PersistentImport ( src/Database/Esqueleto/Internal/PersistentImport.hs, dist/build/Database/Esqueleto/Internal/PersistentImport.o ) [2 of 4] Compiling Database.Esqueleto.Internal.Language ( src/Database/Esqueleto/Internal/Language.hs, dist/build/Database/Esqueleto/Internal/Language.o ) [3 of 4] Compiling Database.Esqueleto.Internal.Sql ( src/Database/Esqueleto/Internal/Sql.hs, dist/build/Database/Esqueleto/Internal/Sql.o ) src/Database/Esqueleto/Internal/Sql.hs:531:46: Not in scope: type constructor or class `C.ResourceT' src/Database/Esqueleto/Internal/Sql.hs:559:42: Not in scope: type constructor or class `C.ResourceT' src/Database/Esqueleto/Internal/Sql.hs:619:31: Not in scope: type constructor or class `C.ResourceT' src/Database/Esqueleto/Internal/Sql.hs:634:24: Not in scope: type constructor or class `C.ResourceT' src/Database/Esqueleto/Internal/Sql.hs:636:17: Not in scope: `C.runResourceT' Failed to install esqueleto-1.3.5 cabal: Error: some packages failed to install: esqueleto-1.3.5 failed during the building phase. The exception was: ExitFailure 1 -- End Command Output Can someone figure out what might be wrong? (I guess it's not a dependencies issue...) Thank You Very Much, in advance, for your time! Gilberto PS: Should I have included the command output in an attached file? Which "method" is preferred?