Hi, I have been using ghc-mod (via ghcmod-vim) recently and it's fantastic but I can't get it to work on one of my Yesod projects. This is what happens on a minimal scaffolded Yesod project: $ yesod init # create project Foo, sqlite, no other options $ cd Foo $ cabal install # builds ok, no issues $ ghc-mod check Handler/Home.hs Handler/Home.hs:0:0:Error:<command line>: cannot satisfy -package yesod-test (use -v for more information) I've reported the error on github [1] but I was wondering if anyone here had a workaround, maybe using cabal-dev or sandboxing or something? Cheers, -- Carlo Hamalainen http://carlo-hamalainen.net [1] https://github.com/kazu-yamamoto/ghc-mod/issues/170