Error during "ember deploy"

[denzo]

TypeError: glob pattern string required
node_modules/ember-cli-deploy-appshell/node_modules/minimatch/minimatch.js:86:11)
node_modules/ember-cli-deploy-appshell/index.js:42:61
....

[wongpeiyi]

Try this: https://github.com/ef4/ember-appcache-demo/blob/master/config/deploy.js#L8-L12