I've upgraded a 5.0.8 site to 5.1 using buildout and now when I login and try to add content from the toolbar, none of the forms are displayed, I just get a blank area on the screen where the for should be.
Any ideas where I should be looking to debug this one?
Did you run the site upgrade on the web interface? A message to run the upgrade should be available at the root of your site structure ( http://localhost:8080/). Are there any error messages on the console or var/log/instance.log?
The only addon installed is plone.app.ldap which requires formlib I believe. Adding "zcml += Products.CMFPlone-meta:meta-bbb.zcml" to buildout has fixed this issue.
I've had this issue on two separate sites, and both sites have existing content which was not affected and could be edited. This problem only affects adding new content.