I recently upgraded by ASP.Core beta web project to an ASP.NET Core 2.0 application with an ASP.NET Core 2.0 API behind it.
Before the upgrade, my Telerik reports ran fine.
Now, the HTML5 viewer appears, and throws the following error:
"Error registering the viewer with the service. An error has occurred. The type initializer for 'Lock' threw an exception."
1#:1 Uncaught (in promise) Invalid cliendID
refreshReport @ telerikReportViewer-184.108.40.206.js:1442
start @ telerikReportViewer-220.127.116.11.js:5417
I have followed the exact steps from here to support ASP.NET Core 2.0 apps:
Any ideas what the error means and how to fix it?