Cannot read property 'bgColorGradient' of undefined at a.setLightPreset about forge-rcdb.nodejs

[leefsmp]

I'm not sure why this happens... try to clear the storage entry and check that the default values are being used, those are defined there.

[orbjeff]

Yeah I can't pin this one down either. It seems like it would start here:

\store\app.js line 204
const storage = storageSvc.load( 'AppState.storage', defaultAppState)

And when the item is pulled back out here:
StorageSvc.js line 57

` load (key, defaultValue = {}) {

const storageKey = this.getStoragekey(key)

const item = Lockr.get(storageKey) || defaultValue

if (item.storageVersion) {

  if (this.currentStorageVersion > item.storageVersion) {
    return defaultValue
  }
    
  return item.__array || item
}

return defaultValue

}`

It no longer has the lightPreset property. The defaultValue that's passed in has the lightPreset property so yes if there is no "AppState.storage" item in the collection it should be ok. I think that's what you mean when you say to clear the storage entry.

Just testing for undefined as I mentioned above is working for me so this was more of a heads up to anyone else who may be trying to get the viewer to load but only see the dots animating.

I ended up using this code in the Viewer.Configurator.js file:
` if (viewerTheme.lightPreset) {

    viewer.setLightPreset(viewerTheme.lightPreset)
  } else {

    viewer.setLightPreset(Autodesk.Viewing.Private.LightPresets.length - 1)
  }`

[leefsmp]

I tested on Win 10 with Chrome 64 and cannot reproduce it, so I will close it for the time being. Feel free to add further comments if needed.