[Mailman-Developers] Upgrading from Mailman 3.0 installed with mailman-bundler: sassc error

Hit an issue while upgrading mailman bundler that I'm just going to note here in case it affects anyone else.

After upgrading, I go to the web interface and try to log in only to get the following error: “/bin/sh: sassc: command not found”

Which as a security person is the type of error message I least like seeing, but that's another story. ;)

This thankfully made me think of the last commit message in mailman-bundler, and the commits helped me figure out the rest:

https://gitlab.com/mailman/mailman-bundler/commit/3d6555acd640d77f510b786e5e...

the solution is

1. install rubygem-sass
2. update mailman_web/development.py so that COMPRESS_PRECOMPILERS asks for sass instead of sassc

I'm sure I'm going to find a few more bugs as I go, but I wanted to note that one before I forgot.

Terri