Missing ghc-mod packages in stack project

Question

I recently broke something in my setup (probably stack upgrade) and found I cannot get it working again:

ghc-mod: <command line>: cannot satisfy -package-id http-types-0.8.6-6a9e3ae2218aaee5f093c4f68fa256c5

$ stack list-dependencies | grep http
http-types 0.8.6
$ cabal --version
cabal-install version 1.22.6.0
using version 1.22.4.0 of the Cabal library
$ cabal info http-types | grep installed
    Versions installed: 0.8.6

I'm using recent stack-support branch. Why do I have this hash difference?

$ ghc-pkg dump | grep http-types
name: http-types
id: http-types-0.8.6-6f392f2a441fe60aa14d377f6850166a

Answer 1

I don't know if this will solve your problem, but I was just fighting this issue and I was able to solve it by removing the dist/ directory in my project.