Constructor import error message suggests invalid syntax
In module `Data.List.NonEmpty':
`:|' is a data constructor of `NonEmpty'
To import it use
`import Data.List.NonEmpty (NonEmpty (:|))'
or ...That is not a very good suggestion, since it won't compile. It should be:
`import Data.List.NonEmpty (NonEmpty ((:|)))'Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.2.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |