Trying to learn stack. I'm following the tutorial on this page:

https://docs.haskellstack.org/en/stable/GUIDE/

I built helloworld. Then I modified Lib.hs to include Data.Text.IO, as the tutorial specifies. I typed 'stack build' and got the error that the text package wasn't installed, as the tutorial says I would. I then modified helloworld.cabal to have these lines:

  build-depends:       base

                     , helloworld

                     , text

and typed 'stack build' again. I got the exact same  output - an error on building Lib.hs, 'Failed to load interface for Data.Text.IO. I checked that I really modified al lthe right files and can't find anything I did wrong.

_______________________________________________
Haskell-Cafe mailing list
To (un)subscribe, modify options or view archives go to:
http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
Only members subscribed via the mailman list are allowed to post.