#4806: Make error message more user friendly when module is not found because package is unusable -------------------------------------+------------------------------------- Reporter: mitar | Owner: Type: feature | Status: infoneeded request | Milestone: 7.10.1 Priority: low | Version: 7.0.1 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by mitar): See [https://stackoverflow.com/questions/13794168/haskell-cant-find- package here an example] of exactly what I am talking about here and how it confuses users. So user here has issues using Haskell program and module is said to not exist: `Could not find module 'Data.Vector'`. But then you can see such error: {{{ package vector-0.10.0.1-3450daae3d9f2092020075d05481123c is unusable due to missing or recursive dependencies: base-4.5.1.0-81d626fb996bc7e140a3fd4481b338cd primitive-0.5.0.1-15cdc8c11a54a78809b647af0c2975b3 }}} So instead of saying that that module is not found which make one think you just have to install it, something else should be said. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/4806#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler