#12395: Misleading GHCi errors when package is installed -------------------------------------+------------------------------------- Reporter: crockeea | Owner: Type: bug | Status: new Priority: high | Milestone: Component: GHCi | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: #11536 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by crockeea): My current workflow requires using `cabal install`, and I'm not aware of another option (though I'm open to suggestions. I'm not sure if this problem occurs with stack or not, but either way stack still doesn't have an LTS resolver for GHC 8.0.) I wrote a library, and also a separate program which depends on that library. Thus the library must be cabal- installed to build the second program (this is true even if I use `add- source` in cabal). Then when I go back to make changes to the library, the error above can occur. Note that in this workflow, it is never necessary to `ghc-pkg unregister` the library: if I build with cabal, it detects the changed source and automatically rebuilds/installs, and if I use ghci it uses the source code. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12395#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler