Are you sure? I have got the same error, and see there is lots of <?=plugins_url() and such throughout the plugin. I have changed all the php tags to the full version, which very almost works – I can install it, but now it will not let me save any new content types – and there isn’t any text on the submit button. It just refreshed the page when I press it.
Maybe I am looking at a previous version or something?
