The Blazor platform has a
licensing validation issue. To resolve this issue, please follow
this KB article Link.
This issue arises only when you use the Blazor NuGet package version
17.4.0.39 from nuget.org.
We are working to resolve the issue with high priority. We will resolve and
confirm by 20th December 2019.
Regards,
Syncfusion Blazor Team.
This issue
resolved and updated in nuget.org on 20th December 2019. If you installed the
Syncfusion.Licensing package on or before 20th December 2019, please clear
NuGet cache or remove the Syncfusion.Licensing version 17.4.0.39 package from NuGet cache.
Regards,
Syncfusion Blazor
Team.