Grunt wiredep：app找不到Bower软件包

我更新grunt-wiredep npm install --save-dev grunt-wiredep 然后运行bower install bower install jquery --save 我调用Grunt任务 grunt wiredep 并且它没有完成任何错误，最后我可以运行 grunt serve

After running

yo ionic

from github/diegonetto/generator-ionic

Then lauching grunt serve i've got this :

Running "wiredep:app" (wiredep) task Cannot find where you keep your Bower packages.

I'm stuck and I can't get a preview of the app.

I update grunt-wiredep npm install --save-dev grunt-wiredep and then run a bower install bower install jquery --save I call the Grunt task grunt wiredep and it was done without any errors, finally i could run grunt serve