Unable to save changes to form design

We have been trying all day to design a form, but CommCare does not allow us to save its design.

We keep getting a pop-up box saying "There was an error saving" after waiting a while. Please see the screenshot below:

We do not have any problems with internet connectivity and other functions of CommCare, such as receiving and sending forms and downloading apps seem to be working fine.

Are you still having this issue? I'd guess there's a problem with the form itself. Have there been many changes since the last save? The easiest solution would be to reload the page, but you'll lose any unsaved changes.

You can make a backup of the unsaved form by going to the form menu, selecting "Edit Source XML" and copying that someplace safe until this issue is resolved.

Okay, that's really useful to know - thanks a lot!