Bug
Opening a web map in the new ArcGIS Collector and ArcGIS Field Maps app fails with the error returned, “invalid call with current token type” when the map contains a layer with a date field and date format "datePattern": "MMMM d, y".
| Bug ID Number | BUG-000137470 |
|---|---|
| Submitted | February 16, 2021 |
| Last Modified | September 26, 2025 |
| Applies to | ArcGIS Field Maps |
| Version found | 20.2.0 |
| Operating System | Apple iOS |
| Operating System Version | 14.0x |
| Status | Will Not Be Addressed |
Additional Information
The issue is expected behavior in ArcGIS Field Maps. Formatting a date using the 'datePattern' property is not supported. Dates should be formatted using 'dateFormat', refer to https://developers.arcgis.com/documentation/common-data-types/format.htm.Workaround
- Remove the pop-up for the layer, and save the web map.
- Open the map's JSON in ArcGIS Online Assistant and change the format of the date field from "datePattern": "MMMM d, y" to "dateFormat": "shortDateLongTime".
- Open pop-up configuration > Configure Attributes.
- Change the display format of the date field, and save the map.
Steps to Reproduce
Bug ID: BUG-000137470
Software:
- ArcGIS Field Maps
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