BroccoliMergeTrees: Expected Broccoli node, got undefined for inputNodes[0]

[w3o-io]

Hi there,

This error appear - BroccoliMergeTrees: Expected Broccoli node, got undefined for inputNodes[0] after I update the ember-c3 version from 0.3.1 to 1.2.0 and ember build, my ember-cli version is 3.5.0.
Any ideas?

Thank you.

[maxwondercorn]

The error is caused when trying to merge c3.css with an empty vendors directory. I'm surprised you're the first one to see this issue. There are a couple ways of fixing this. I'll get to the fix later today,

[maxwondercorn]

Issue should be resolved with release 1.2.1. Thanks.