Error Message
Attempts to open a web map in the ArcGIS Field Maps mobile app fail and return the following error message:
Error:
Unable to Open
Invalid argument.
Cause
The web map contains a route layer that has no origin or stop specified.
Solution or Workaround
Remove the route layer from the web map in ArcGIS Online
- Log in to ArcGIS Online.
- On the Content page, click the web map.
- On the Overview tab of the item details page, click the Open in Map Viewer option.
- Delete the route layer in the web map. Refer to ArcGIS Online: Manage and organize layers for instructions.
Set an origin and stop for the route layer
- Log in to ArcGIS Online.
- On the Content page, click the web map.
- On the Overview tab of the item details page, click the Open in Map Viewer option.
- On the Contents (dark) toolbar, click Layers and select the existing route layer.
- On the Settings (light) toolbar, click Map tools and select Directions.
- In the Directions pane, enter the route origin and a stop. Refer to ArcGIS Online: Create a route layer for further instructions.