Which may be the cause of the error: Cannot read property 'length' of undefined?

[AdministratorAGOL_ODIMM]

In mobile app survey works fine bun in the web app when sending the application gives the error mentioned above.

which may be the cause of the error?

[JamesTedrick]

Hi Igor,

it would be helpful to have the XLS file to replicate.  There is most likely a small problem with on of the questions that the web app is more strict about enforcing than the mobile app.

[AdministratorAGOL_ODIMM]

Hi James,

Actually we use Survey123 for registration form so is a quite big. Meanwhile I will check question one by one.

Find attached to message xls file.

Thanks in advance.

Igor. 

[AdministratorAGOL_ODIMM]

JTedrick-esristaff it seems that I have found the cause. Groups with only attachment questions are not supported.

But I still do not have a solution.

I  attached just the fragment where I found the error.

[JamesTedrick]

Hi Igor,

We've been able to replicate the issue and will address it in a future release.