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mapview ยท console.warn

createMapView: the grid has no place to draw...

Printed by mapview, prefixed [lattice], since 1.85.0.

Warnings reference › mapview:geometry

Identifier
mapview:geometry
Raised by
mapview
Since
1.85.0

What happened

options.geometry says where each row is placed, and it must name columns of the grid: { lat, lng } (or lon), { geojson } or { path }. It was missing, or named a column the grid does not have, so no map was made.

The fix

Name the grid's own columns in geometry.

The smallest fix

geometry: { lat: 'latitude', lng: 'longitude' }  // or { geojson: 'geom' } or { path: 'route' }

Reference

Covered in full at the API reference.