I have created a custom site column and a custom content type containing the site column. These never show in the galleries. I have tried using a custom group name in my elements.xml and the custom group never shows up and so the content type and/or site column never shows up. I tried it with no group and it didn't work. I tried it with an existing group and it didn't work. With each attempt I made sure I deactivated the feature and uninstalled it before making the changes to elements.xml. I also even reset the iis for good measure, but nothing seems to work. I don't believe there's anything wrong with my feature.xml and elements.xml or else it wouldn't install and activate correctly, which it does. I get no error messages, it just simply won't show up in the gallery. I am working in SharePoint Foundation 2010 so there are no publishing features. Does anybody know what could cause this?