when I enter data in Kobocollect App in Tablet, it show me this error " error evaluating field’_persons_present_who’ (/188MuB2sYmpTbdce8GtKg3/s5[1]/_person_present_who[1]:java.lang.Double cannot be cast to java.lang.String"
what is the solution for this error, in online browser data entry and evaluation, this error is not shown.

Welcome to the community, @mas_11111! Could you share a screenshot of the issue? Do you mean when you are collecting data with the app, you see this in the middle of the data collection?

yes when we collecting data with app this error pop up but in online form no error is shown

@mas_11111, did you also validate your XLSForm through this online validator to see if there are any syntax issues?

Yes we validate the form in form view and doesn’t showed any error.

Enketo Express for KoboToolbox (

Hi @mas_11111, this appears to be an issue in the Collect App. Can you please start a discussion about this in the ODK forum:

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