TypeError: Cannot read properties of undefined (reading 'log')

[weilinzung]

We are keep getting this error from vscroll lib.

Uncaught (in promise) Error: Uncaught (in promise): TypeError: Cannot read properties of undefined (reading 'log')
TypeError: Cannot read properties of undefined (reading 'log')
    at vscroll.esm5.js:5168:20

https://github.com/dhilt/vscroll/blob/5ebbe79497bc90594885b792d04dd9868f641582/src/classes/adapter.ts#L515

Not too sure if because in this wrapper that doesn't export the logger?

[dhilt]

@weilinzung It looks like a serious issue. Loosing a context. Do you call the Adapter.reset method at some moment or destroy/re-create the component containing the Scroller? Could you please attach dev-log of the failing run? I need to understand which processes have led to this point.

  devSettings: {
    debug: true,
    logProcessRun: true
  }

Also, if it is possible, could you provide minimal runnable demo (like by forking this stackblitz)? This would be the best option for me to investigate the issue.

[weilinzung]

@dhilt, we do call reset method in some usages. It is very complex for our usage, let me do the debugging first. Then I will get back to you. thank you for your quick response.

[weilinzung]

@dhilt It is the issue of calling Adapter.reset . We basically listen to the data changes from the backend, then call the reset.

      const newDatasource = this.createDataSource(newIndex);
      await this.dataSource.adapter.reset(newDatasource);

[dhilt]

@weilinzung Ok, still waiting for dev logs 🙂

[dhilt]

ngx-ui-scroll v3.0.2 contains fix related to this issue, though I'm not sure if it covers the initial case, so, please open a new PR if the problem still occurs.