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Could Not Load File or Assembly Telerik.Blazor


Product Version
Product Progress® Telerik® Reporting
Report Viewer Native Blazor Report Viewer


Upon installing the Telerik.ReportViewer.BlazorNative package and following the Integrating Native Blazor Viewer in Blazor Server or WebAssembly App article, I am met with the below error when I start the project.

Error Message

FileNotFoundException: Could not load file or assembly 'Telerik.Blazor, Version=, Culture=neutral, PublicKeyToken=29ac1a93ec063d92'. The system cannot find the file specified.


The Telerik.ReportViewer.BlazorNative NuGet package of the Telerik Reporting release has a dependency on the Telerik.UI.for.Blazor(4.0.1) package but is actually built and expected to work with version 4.1.0+ of the Telerik UI for Blazor package.


Install the Telerik.UI.for.Blazor NuGet package with version 4.1.0+ in the project with the report viewer, and it should override the default version that the Telerik.ReportViewer.BlazorNative package uses.

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