Better error message for missing instances of EncodeCsv
Better error message for missing instances of EncodeCsv

The derivation process doesn't allow for a nice hook in the compiler
where the derivation fails, instead all we can do is mention a decent
error to the user, asking them to ensure that all required intstances
are in scope.

Signed-off-by: Gary Pamparà <46654e9f53f0e5c1be5f3914582d375e0aa2156c@gmail.com>

cirg-up/cilib