I can reproduce the problem with 7.10.3. Since the compiler got completely rewritten, the plugin for sure doesn't work with 8.0.

In case anyone else wants to take look at this bug, I can say the plugin contains a lot of hopefully helpful comments.

On Sat, Jan 16, 2016 at 12:49 AM, Jan Bracker <jan.bracker@googlemail.com> wrote:

Seems like 'effect-monad' is bitrotting a bit...