I just want to add a single icon to my app. I'm using the CLI and online phonegap build. I've followed the instructions from here: https://cordova.apache.org/docs/en/latest/config_ref/images.html and placed the icon.png in res/ and added the following to my config.xml:
`<icon src="res/icon.png" />`
In reality, you need to supply ALL the icons for the platform you are building for. See the documentation for the full list. The single icon tag is not really used by either iOS or Android.
But I'll try creating the full set of icons and see how that goes.
Edit: the problem was that I left in the template platform specific icon paths. Silly mistake.