WARNING: Invalid Broccoli2 node detected, falling back to broccoli-builder.

[joshuataylor]

Looks like a dependency issue maybe?

Filter: The .read/.rebuild API is no longer supported as of Broccoli 1.0. Plugins must now derive from broccoli-plugin. https://github.com/broccolijs/broccoli/blob/master/docs/broccoli-1-0-plugin-api.md
used as input node to broccoli-persistent-filter:Mapper
-~- created here: -~-
    at Mapper.Plugin (node_modules/broccoli-plugin/index.js:7:31)
    at Mapper.Filter [as constructor] (node_modules/broccoli-persistent-filter/index.js:78:10)
    at new Mapper (node_modules/broccoli-stew/lib/map.js:38:10)
    at Mapper (node_modules/broccoli-stew/lib/map.js:36:12)
    at Class.treeForVendor (node_modules/ember-simple-auth-token/node_modules/ember-fetch/index.js:102:19)
    at Class._treeFor (node_modules/ember-cli/lib/models/addon.js:616:33)
    at Class.treeFor (node_modules/ember-cli/lib/models/addon.js:576:21)
    at addons.reduce (node_modules/ember-cli/lib/models/addon.js:449:26)
    at Array.reduce (<anonymous>)
    at Class.eachAddonInvoke (node_modules/ember-cli/lib/models/addon.js:446:24)
-~- (end) -~----------------