Re: [Haskell-cafe] Data.ByteString vs Data.ByteString.Lazy vs Data.ByteString.Char8

Warning: This package indirectly depends on multiple versions of the same package. This is highly likely to cause a compile failure. package binary-0.4.2 requires bytestring-0.9.0.1 package bio-0.3.4.1 requires bytestring-0.9.1.0 ah ha .. Ketil, this is what you are saying? If so, how do I fix? install a newer version of binary? regards, vasili On Wed, Dec 3, 2008 at 1:32 AM, Ketil Malde wrote:

"Galchin, Vasili" writes:

...

I think I am getting a namespace collition between

Data.ByteString.Lazy.Char8.ByteString

and

Data.ByteString.Lazy.Internal.ByteString ....

You rarely need to import 'Internal' directly.

...

here is the error message ....

Couldn't match expected type `B.ByteString' against inferred type `bytestring-0.9.0.1:Data.ByteString.Lazy.Internal.ByteString'

Are you sure this is not just a versioning problem? I.e. that some library is built against bytestring-0.X.Y, but your current import is bytestring-0.A.B, but your program expects these to be the same? (And they probably are, but the compiler can't really tell).

-k -- If I haven't seen further, it is by standing in the footprints of giants