I've been migrating an existing Umbraco 6 to 7, and I've had all kinds of problems getting Umbraco Forms to work correctly. The first problem was that the Umbraco Forms tree wasn't being displayed correctly at all - I narrowed this down to our use of Autofac, and was able to sort that via the solution at https://our.umbraco.org/forum/umbraco-7/using-umbraco-7/61745-Failed-to-retrieve-data-for-application-tree-forms-AutoFac-IOC,-Umbraco-722-and-Forms - thanks to Chris Recknel!

But now while the top level tree is being displayed, if I try to drill into any of the nodes (Forms, Data Sources, PreValue Sources) a 404 error is thrown for the following pages:

http://[our test domain]/umbraco/backoffice/UmbracoForms/Form/GetOverView and /umbraco/backoffice/UmbracoForms/Licensing/GetLicenseStatus and /umbraco/backoffice/UmbracoForms/Updates/GetUpdateStatus

I'm using Umbraco 7.2,5 and Umbraco Forms 4.1.3

Looks from the XML error message like a problem with WebAPI routing but can't get to the bottom of it. Has anyone else had this problem - been staring at this for more than a day now, and would be hugely grateful your some assistance!