failed loading DevelMain from stack ghci

[joprice]

I get the following error when trying to follow the development instructions:

    Could not load module ‘Foreign.Store’
    It is a member of the hidden package ‘foreign-store-0.2’.
    You can run ‘:set -package foreign-store’ to expose it.
    (Note: this unloads all the modules in the current scope.)
    Use -v to see a list of the files searched for.
   |
40 | import Foreign.Store
   | ^^^^^^^^^^^^^^^^^^^^

It seems like the dev setting in stack.yaml is not being applied to the ghci session. If i change it to True in the cabal file, the dev features are enabled.