I am getting an error "Failed to submit: - D is null" on a web survey.
Uncaught TypeError: D is null
The survey was first created in March - April 2020, and I'm now resuming work on it using XLSForm in Survey123 Connect v 3.11.123.
I have tried duplicating the survey into a new survey and changing sharing settings. There's no other input validation problems until I get to the last page with the submit button, when I get the "Failed to submit: - D is null" error.
Has anyone else had this issue and been able to resolve? Thanks!
I seem to have resolved the problem. The issue was that I had left the "annotate" option in the appearance field on the inputs I had changed from "image" to "file" type. After removing the appearing option on the file inputs, I was able to submit the form.