Currently the relative path to your hoogle DB is globally hardcoded in the config.
I only tested this with a stack project
You need to install the command line tools:
I managed to do this by running the following
cd ~ stack install hoogle stack install hsimport
In order to create a workable local hoogle database for your stack project please run:
stack hoogle generate -- --local
This is disgustingly slow the first time around but should be quicker with time. If you find yourself unable to find some local imports you might want to run this command again after a successfull compilation run.
ctrl+i when the cursor is on a symbol should trigger the import view.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.