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install new Blazor Server app error


I am creating a new Blazor Server app (counter app).  Its .Net 7 (selected in creation wizzard).  I then try and "Convert to SyncFusion Blazor app".  But I get an error about .Net Core 3.0 which seems a bit odd.

When I view the compatability link - there is no reference to .Net 7

See attached screen shots.  Any idea what im doing wrong


Attachment: For_Syncfusion_ece3a9e7.zip

6 Replies

GR Ganesan Rengasamy Syncfusion Team November 29, 2022 10:18 AM UTC

Hi Indy Gill,

We can be able to reproduce this issue in the .NET 7.0 SDK alone installed machine. But as of now, we are not providing the .NET7.0 project support for the Syncfusion Blazor Conversion and Migration extension. We have created the below feature request in our feedback portal, and this will be included in our upcoming release. You can follow the below link for further details.



Ganesan Rengasamy.

IG Indy Gill November 29, 2022 10:22 AM UTC

Great im glad you can replicate - look forward to the fix in a future release.  Will teh fix be a NuGet package fix or do I need to update the Visual Studio Syncfusion extention?

GR Ganesan Rengasamy Syncfusion Team November 29, 2022 10:50 AM UTC

We will publish the Syncfusion Blazor extension with .NET7.0 support in the Visual Studio Marketplace. You need to update the Syncfusion extension from the Visual Studio to use our Syncfusion Blazor Conversion and Migration in the .NET 7.0 application.

IG Indy Gill November 29, 2022 10:52 AM UTC

Great - I will keep an eye out for it.  Thanks for the great support,  Keep up the great work

GR Ganesan Rengasamy Syncfusion Team December 22, 2022 06:30 AM UTC

Hi Indy Gill,

We are glad to announce that our Essential Studio 2022 Volume 4 release v20.4.0.38 is rolled out with .NET7.0 extension support for Blazor and is available for download under the following link.


We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you would require any further assistance.


Ganesan Rengasamy.

RG Rachel Gomez February 2, 2023 06:43 AM UTC

Follow the below steps to install Blazor in Visual Studio 2019.


.NET Core SDK 3.1.8/.NET 5.0 SDK

Visual Studio 2019 (Preview 4 or later) with the ASP.NET and Web development workload added. (This workload includes a Blazor template by default when installing Visual Studio 2019).

Install the latest Blazor Extension from the Visual Studio Marketplace. This step makes Blazor templates available to Visual Studio 2019.


Rachel Gomez

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