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Arcgis-JS-API 4.10 - Basemapgallery Error

Question asked by on Jan 9, 2019
Latest reply on Jan 29, 2019 by ajoos

Hi all


We have upgraded our JS-Api from 4.7 to 4.10 , everything works fine, only some issues need to be fixed. But then we realize when starting our app the BaseMap Gallery Widget is not working any more. 


Error happens when doing following steps:

  1. open widget
  2. choose a basemap from the list



The basemap can not be loaded because of a classic null-pointer


Error from Browser log:


ERROR Error: Uncaught (in promise): TypeError: Cannot set property 'visible' of null
TypeError: Cannot set property 'visible' of null
at Object.<anonymous> (MapView.js:603)
at b.callback (dojo.js:365)
at b.notify (dojo.js:325)
at b.propertyInvalidated (dojo.js:326)
at b.propertyInvalidated (dojo.js:298)
at b.callback (dojo.js:330)
at b.notify (dojo.js:325)
at b.propertyCommitted (dojo.js:327)
at b.propertyCommitted (dojo.js:299)
at b.internalSet (dojo.js:297)
at resolvePromise (zone.js:795)
at zone.js:847
at ZoneDelegate.webpackJsonp.../../../../zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:425)
at Object.onInvokeTask (core.es5.js:3881)
at ZoneDelegate.webpackJsonp.../../../../zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:424)
at Zone.webpackJsonp.../../../../zone.js/dist/zone.js.Zone.runTask (zone.js:192)
at drainMicroTaskQueue (zone.js:602)
at ZoneTask.webpackJsonp.../../../../zone.js/dist/zone.js.ZoneTask.invokeTask [as invoke] (zone.js:503)
at invokeTask (zone.js:1427)
at HTMLLIElement.globalZoneAwareCallback (zone.js:1445)



Does anybody has already met this problem or a similar problem?