Unknown command ':type-at'

[folex]

Happens on project paxoslease when I try to invoke Quick documentation on any variable or function.

Rebuilding Hoogle DB / Update settings & restart REPL / restarting IDE didn't help.

Plugin version: 1.0.0-beta55 , from custom plugins repo. IDEA:

IntelliJ IDEA 2019.3 EAP (Ultimate Edition)
Build #IU-193.4386.10, built on October 9, 2019
macOS 10.14.6

Messages:

Information:/usr/local/bin/stack build --fast --no-interleaved-output indexed-prelude:lib paxoslease:lib
Information:indexed-prelude> build (lib)
Information:indexed-prelude> copy/register
Information:paxoslease     > configure (lib)
Information:paxoslease     > build (lib)
Information:paxoslease     > copy/register
Information:Completed 2 action(s).
Information:Log files have been written to: /Users/folex/Development/paxoslease/.stack-work/logs/

Event Log:

1:59 AM Ambiguous Stack target for file `/Users/folex/Development/paxoslease/paxoslease-interactive/src/Lib.hs`. It can belong to the source dir of more than one Stack target/Cabal stanza: `Set(paxoslease-interactive:exe:paxoslease-interactive-acceptor, paxoslease-interactive:exe:paxoslease-interactive-proposer)`  |  `paxoslease-interactive:exe:paxoslease-interactive-acceptor` is chosen.

[sir4ur0n]

Could it be that your project uses an old version of GHC? I see it's using Stack snapshot LTS 6.15 (i.e. GHC 7.10.3) which is quite old!

[folex]

That was it! Works with lts-13.26 and lts-14.10, thank you :)

[rikvdkleij]

@Sir4ur0n Thanks!