Thanks, Krzysztof - it worked for me.
Something is definitely wrong with cabal dependencies: even when
HDBC-2.0.0 was installed, it tried to install it again (and failed)
when I tried to install HDBC-postgresql and HDBC-sqlite3.
Manual installation (./Setup configure; ./Setup build; ./Setup
install) worked.
Thank you for your help,
-- Valentyn.
On Jan 30, 2009, at 3:52 PM, Krzysztof Skrzętnicki wrote:
On Sat, Jan 31, 2009 at 00:45, Krzysztof Skrzętnicki
<gte...@gmail.com> wrote:
On Sat, Jan 31, 2009 at 00:07, Valentyn Kamyshenko
<kam...@kamysh.org> wrote:
Hello John,
I'm trying to install the new version of HDBC on my Mac (ghc version
is 6.10.1), and get the following error:
# cabal upgrade --global
Resolving dependencies...
'HDBC-2.0.0' is cached.
Configuring HDBC-2.0.0...
Preprocessing library HDBC-2.0.0...
Preprocessing executables for HDBC-2.0.0...
Building HDBC-2.0.0...
[1 of 7] Compiling Database.HDBC.SqlValue ( Database/HDBC/
SqlValue.hs, dist/build/Database/HDBC/SqlValue.o )
[2 of 7] Compiling Database.HDBC.ColTypes ( Database/HDBC/
ColTypes.hs, dist/build/Database/HDBC/ColTypes.o )
[3 of 7] Compiling Database.HDBC.Statement ( Database/HDBC/
Statement.hs, dist/build/Database/HDBC/Statement.o )
Database/HDBC/Statement.hs:113:9:
Type constructor `Exception' used as a class
In the instance declaration for `Exception SqlError'
cabal: Error: some packages failed to install:
HDBC-2.0.0 failed during the building phase. The exception was:
exit: ExitFailure 1
I got the same error: Windows XP, GHC 6.10.1.
For some reason imported Control.Exception module appears to be
6.8.* version.
I found a (temporary) fix: change dependancy in .cabal file to state
"base >= 4". Otherwise cabal-install selects base-3 which is the
cause of the problems.
All best
Christopher Skrzętnicki
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