> [!NOTE] > If the `dotnet new webapp ` command loads the [dotnet new](/dotnet/core/tools/dotnet-new) command help instead of creating a new Razor Pages app, install [.NET Core SDK 2.1.300 or later](https://www.microsoft.com/net/download/archives). As of .NET Core SDK 2.1.300, the `webapp` *Short Name* is an alias for `razor`.