Syncfusion Essential Studio Release Notes
v20.4.0.40
December 28, 2022
Starting with version 16.2 (2018 Vol 2), you need to include a valid license key (either paid or trial key) within your applications.
Please refer to this help topic for more information
We have removed the Syncfusion Licensing NuGet package v20.4.0.40 from the nuget.org due to an issue with it. To resolve any compilation issues or warnings while using this, upgrade your Syncfusion NuGet packages version to v20.4.0.41 or later.