Error building with com.phonegap.plugin.statusbar for Android

[boblund]

When I try 'cordova build android' I get the following error:

:processDebugResources/Users/blund/Documents/github/IdOra-app/platforms/android/res/xml/config.xml:40: AAPT: Error parsing XML: unbound prefix

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/Users/blund/Documents/github/IdOra-app/platforms/android/build/intermediates/res/merged/debug/xml/config.xml:40: error: Error parsing XML: unbound prefix

FAILED

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':processDebugResources'.

com.android.ide.common.process.ProcessException: Failed to execute aapt
====================

The offending line in ..../config.xml:40 is:
<gap:plugin name="com.phonegap.plugin.statusbar" />

I'm not really sure what's wrong, let alone how to fix it. Any suggestions would be welcome.