Unable to add a CSV file from Dropbox as a layer to ArcGIS Online web maps

Description

In ArcGIS Online, when adding a CSV file from Dropbox to a web map using the ‘Add Layer from Web’ option, the following error message is returned: 

Error:   
The layer was not created because no locations could be found. Make sure your data has valid location information.

Cause

The URL copied from Dropbox contains the query parameter ‘dl=0’ that links to a preview page of the CSV file in Dropbox, disabling ArcGIS Online from downloading and displaying the CSV file in the web map.

Solution or Workaround

1. Launch the web map in ArcGIS Online. 
2. Click Add , and select Add Layer from Web from the drop-down menu. 
3. In the Add Layer from Web window, paste the URL of the CSV file obtained from Dropbox. 
4. Change the query parameter from dl=0 to dl=1, and click ADD LAYER, as shown in the following image.