Bulletproofing Ember Builds? Intermittent Error: Cannot read property 'addon' of undefined

Is there a good doc on making ember builds more robust. We have multiple kinds of intermittent errors that routinely take out our builds and I know there must be a common practice to handle these.

Thanks

Error Type: Cannot read property 'addon' of undefined

env:

• linux + maven + frontend plugin
• nodeVersion v0.12.1

• npmVersion>2.14.12

  [INFO] version: 1.13.8 [INFO] Could not find watchman, falling back to NodeWatcher for file system events. [INFO] Visit http://ift.tt/1PK1A1H for more info. [INFO] BuildingBuilding... [INFO] Cannot read property 'addon' of undefined [INFO] TypeError: Cannot read property 'addon' of undefined [INFO] at Class.module.exports.lintTree (./src/securitydebugging/node_modules/ember-cli-qunit/index.js:192:43) [INFO] at ./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:468:25 [INFO] at Array.forEach (native) [INFO] at EmberApp.addonLintTree (./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:466:23) [INFO] at EmberApp._addAppTests (./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:946:30) [INFO] at EmberApp.appAndDependencies (./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:919:8) [INFO] at EmberApp.javascript (./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:973:34) [INFO] at EmberApp.toArray (./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:1346:10) [INFO] at EmberApp.toTree (./src/securitydebugging/node_modules/ember-cli/lib/broccoli/ember-app.js:1368:30) [INFO] at module.exports (./src/securitydebugging/ember-cli-build.js:38:14)