Having the same issue, even the same error message
How was this resolved? Having the same issues even the same error message.
Uninstalled WA Extensions (all of them)
Uninstalled DWCC 2014 for Mac (Yosemite)
Reinstalled DW CC 2014 for Mac
Re-installed WA extensions in the following order: (ecart 5.0.7, Design Extender 1.2.0, MySQLi Behaviours 1.0.3 and then DataBridge 1.2.2)
This was done after all the suggested fixes (macdat cache file deletion and resetting workspace) failed to work and still i continue to get the same error even after a full re-install of both program and extensions.
The error occurs when i try to create the pages (after selecting the form fields and validation options etc). The page begins to get created, the message pops up and the process stops. I was able to create the insert page using Data Assist 1.2.1 however it crashed DW after that first page creation so i upgraded the extension to version 1.2.2 for the stability fix but are now faced with this new UI issue. Any input would be most appreciated.