GoogleNavigation Framework Reference

GMSMapViewPresentReportIncidentPanelErrorCodeReportingNotAvailable

static const GMSMapViewPresentReportIncidentPanelErrorCode
    GMSMapViewPresentReportIncidentPanelErrorCodeReportingNotAvailable = 1

Reporting is not available for the current context.

Before attempting to display the report incident panel, ensure navigation is active and that reporting is available using the isIncidentReportingAvailable API.