Starting from today i get the following error when i try to build android (until yesterday the app bulded with no problem):
Its likely that you're using an npm plugin that was recently updated. Do one of your plugins inject a cardBackgroundColor into the app's values.xml? I'd suggest finding the likely guilty plugin through process of elimination (or just plugin at each plugin's plugin.xml for a cardBackgroundColor field).
Locking your plugin versions can prevent these issues in the future.
i found that the problem is in recent update in "cordova-plugin-facebook4", actually the problem is hotfixed but will be released the 1.7.1 version soon.
To apply the hotfix use this:
<plugin spec="https://github.com/jeduan/cordova-plugin-facebook4#aff9a08a86cc6c6a18019f7adc2896ddf97c11c d" source="git" >
<param name="APP_ID" value="xxx"/>
<param name="APP_NAME" value="xxx"/>