After installing an addon to v3.0 app the app cant start

[yarigpopov]

ember new some-name
cd some-name
ember install ember-d3-helpers
ember s

and we got

Path must be a string. Received undefined

Stack Trace and Error Report: /var/folders/4l/t0y8jm750tvdmsvg4j47tw2mkg83s2/T/error.dump.61a2575cce397ec3824ee36ffa52e0e0.log

[yarigpopov]

repo with example (although its trivial) https://github.com/chilicoder/example-d3-helpers-ember-3

[yarigpopov]

I see. There is a PR for this #43