# Tileset loading error

**URL:** <https://community.cesium.com/t/tileset-loading-error/7350>\
**Category:** CesiumJS\
**Created:** [August 28, 2018, 7:35am UTC](https://community.cesium.com/t/tileset-loading-error/7350 "2018-08-28T07:35:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![san](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/san/32/2011_2.png) [@san](https://community.cesium.com/u/san)\
**Post date:** [August 28, 2018, 7:35am UTC](https://community.cesium.com/t/tileset-loading-error/7350/1 "2018-08-28T07:35:10Z")

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Getting error while trying to load tileset locally.Only some bits of tiles are loading.At start of loading total tileset is loading but after complete page loading most tiles got vanished.  
can anyone help me with the error.

Cesium.js:451 Required property geometricError is undefined for this tile. Using parent's geometric error instead.

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<div class="post-metadata">

**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [August 30, 2018, 1:50pm UTC](https://community.cesium.com/t/tileset-loading-error/7350/2 "2018-08-30T13:50:58Z")

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Cesium uses the geometric error to figure out when to load child tiles. This is [described in more detail in the spec here](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/specification#geometric-error).

If your tileset doesn’t define the geometric error at each level Cesium might be assuming it’s sufficient to render the parent tiles and it doesn’t need to load any of the children. So you should try to define the geometric error, and uou can also tweak this behavior with the screen space error on the tileset in Cesium:

[https://cesiumjs.org/Cesium/Build/Documentation/Cesium3DTileset.html#maximumScreenSpaceError](https://cesiumjs.org/Cesium/Build/Documentation/Cesium3DTileset.html#maximumScreenSpaceError)

Let me know if that made sense!