Pretty often, I get an error message like:
File name does not match module name:
Saw: Foo
Expected: Bar
The error seems to occur when I am editing in the file Foo.hs, and Bar.hs needs to be recompiled for some reason. Normally, cleaning the project helps for a while, but this kind of error message re-appears too often, so it is annoying.
The best place to post issues is at https://github.com/JPMoresmau/eclipsefp/issues. The sourceforge issue tracker are not in use anymore.