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selectel / mongoDB-haskell

MongoDB driver for Haskell
http://hackage.haskell.org/package/mongoDB
Apache License 2.0
21 stars 11 forks source link

Text package conflict #23

Closed machunter closed 10 years ago

machunter commented 10 years ago

I am (very) new to Haskell and running into a problem using the mongodb driver (too ambitious for a start project?).

I was getting the following error and couldn't make sense of it.

    Couldn't match type `Data.Text.Text'
                  with `text-0.11.3.1:Data.Text.Internal.Text'

After scouring the web the only related information I found was that this is pointing out to a "conflict" between the text libraries on my machine. Indeed when I listed the packages I found that there was 2 versions of text:

ghc-pkg list | grep text
    text-0.11.3.1
    text-1.1.0.1

So when I hid the later version from my install with

ghc-pkg hide text-1.1.0.1

The error went away. I am not sure whether what I am doing is ok and wondering whether the driver would support the later version of text? Thanks.

knsd commented 10 years ago

Hi, @machunter, driver currently supports any version of text. It was actually a local problem, maybe it's better to use something like cabal sandboxes to avoid it.