The following software should be installed on your machine to use DevExpress Blazor components:
.NET Core 3 - Download .NET Core 3.0.
Visual Studio 2019 - Download and install Visual Studio 2019
If you use a Preview version of .NET Core, make sure the Use previews of the .NET Core SDK option is enabled in Visual Studio. You do not need to enable this option if you use the Preview version of Visual Studio 2019.