[Haskell-cafe] "Could not list sources" warning in sandboxed project with add-source deps

[Mikhail Glushenkov]

Hi,

On 15 August 2015 at 02:36, Eric <devnull1999 at yahoo.com> wrote:
> Thanks for the quick reply, Mikhail, but no: the output of "cabal sandbox
> list-sources" looks fine.

One other possibility is that one of the dependencies lists a
non-existing file in its .cabal file, e.g. as part of
extra-source-files.