Travis fails, looking for devel_generate

[zettainino]

Travis fails after this line:
$ drush pm-enable lightning_dev --yes

The error messages are:
No release history was found for the requested project (devel_generate).

Module lightning_dev cannot be enabled because it depends on the following modules which could not be found: devel_generate

I may have missed something. Would you know how to resolve this?
I'm thinking devel_generate is already included in devel

[balsama]

Hi. devel_generate is included in devel. But devel isn't a dependency of Lightning or Lightning Project (it's a dev dependency), so you might need to pull it in yourself.

I also wonder why you're installing Lightning Dev. That's a hidden module that we use to test update paths. It generally doesn't have any consumer facing code in it.