Using MobiOne 2.3.0 (Great job, developers!)
When testing or building one of my apps, I get this warning:
Invalid Send Email action found in widget (custom1); expected Submit Form action
On one app, I got that warning, then by selecting another action (like Go Back), and then re-selecting Send Email, it cured the problem of the warning showing up. However, on another app, it will not go away, even after repeated changes back and forth.
I have selected Send Email, and then in the mailto section I have a valid email address. Doing this same thing works in other apps, so I have not figured this out.