After installing plugin get error message saying that Unexpected content of type 'element start' named 'resources'

When I run the command "forge install-plugin ' I get the following error. Message: Unexpected content of type 'element start' named 'resources'

The plugin then fails to load. I tested this with the switchyard, jboss-as-7 and arquillian plugins, which had worked in previous versions.

The error occurred in both the Forge shipped with JBDS 7.0 and the version downloaded directly from the Forge site.