Failed to restore plugin "phonegap-plugin-barcodescanner".

You’ll need to fix it yourself - just remove it from your config.xml.

I wish Cordova would make and maintain a core plugin for barcodes.

Neither Android nor iOS should need Zxing and similar, as barcodes are supported natively (at least more popular types).

Cordova has a Slack channel - it might be a good place to ask this question:

http://slack.cordova.io/