undefined method `environment' for nil:NilClass

[jcoyne]

sstephenson/sprockets#537

The error occurs when sprockets is upgraded from 2.11.0 to 2.11.1 using Rails 4.

@josh says:

This is a sass-rails issue. It monkey patches private Sprockets classes. The fix will need to be made there.

[josh]

/cc @rafaelfranca

[josh]

This is going to be tricky to get working on sass 3.3. I think sass-rails will have to pin to 3.2 for now and use the old Sprockets::SassImporter tracking technique.

[josh]

All of the glob stuff requires a dynamic reference to context which won't be possible if the importer reference needs to be marshable. A pretty annoying requirement by sass core. I'd probably guess they didn't realize this was the case but theres a ton of circular references that looped the importer into whatever instance is actually being cached.

[rafaelfranca]

Right! I really wish we could remove our SassImporter and use sprocket's one but it will be hard without deprecating the glob importing.

[jcoyne]

Since current version of sass-rails is incompatible with sprockets 2.11.1, wouldn't the expedient fix be to release a patch version locked to sprockets 2.11.0?

[josh]

Another approach for supporting globs would be to disable sass caching. That avoids all the marshaling problems. You'll still have sprockets caching to help keep things fast.

[rafaelfranca]

Yes. I'm doing this right now. But I'm more concerned about the future of this project. I don't want to lock sprockets forever.

[jcoyne]

Excellent. Thanks @rafaelfranca.

[jforberg]

I get this too, whenever I try to import files. This is on a new project running vanilla everything.