A Complete Guide - ASP.NET Core Installing .NET SDK and Runtime

Last Updated: 03 Jul, 2025   
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Explaining in Detail and Showing Important Information on ASP.NET Core: Installing .NET SDK and Runtime

Introduction

What are .NET SDK and .NET Runtime?

  • .NET SDK: This includes everything needed to develop, build, and publish .NET applications, including the .NET Runtime, command-line tools, libraries, project templates, and documentation.
  • .NET Runtime: This allows running .NET applications. The runtime is included in both the .NET SDK and standalone installations.

Step-by-Step Installation Guide

1. Choosing the Right Version Before proceeding, choose the appropriate version of .NET SDK and Runtime. Typically, you should install the latest Long-Term Support (LTS) version unless you have a specific reason to use a different version. Visit the .

  • Run the executable and follow the installation prompts.
  • During installation, you can specify options such as installation location, components, and ASP.NET Core runtime.
  • Important: Confirm the installers are downloaded from the official Microsoft website (.msi file).
  • Manual Installation

    • If you prefer, you can also use the command-line tool (dotnet-install.ps1) to install .NET SDK manually.
    • Open PowerShell and execute the following command:
      Invoke-WebRequest -Uri -OutFile dotnet-install.ps1
      ./dotnet-install.ps1 -Channel Current
      
    • This command will download and install the latest .NET SDK.
  • 3. Installing .NET SDK on macOS

    5. Installation on Other Linux Distributions

    Step-by-Step Guide: How to Implement ASP.NET Core Installing .NET SDK and Runtime

    Step by Step Guide: Installing .NET SDK and Runtime for ASP.NET Core

    Pre-Requisites

    • Operating System: This guide will cover installation on Windows, macOS, and Linux.
    • Internet Connection: Ensure you have access to the internet to download the necessary files from the official .NET website.

    1. Installing .NET SDK

    On Windows:

    1. Download the Installer:

    On macOS:

    1. Download the Installer:

    On Linux (Ubuntu):

    1. Register the Microsoft package signing key and feed:

      • Open a Terminal and run the following commands:
        wget -O packages-microsoft-prod.deb
        
        sudo dpkg -i packages-microsoft-prod.deb
        
    2. Install the .NET SDK:

      • Update the products available for installation:
        sudo apt-get update
        
      • Install the .NET SDK:
        sudo apt-get install -y dotnet-sdk-6.0
        
        (You can replace 6.0 with the version number you need.)
    3. Verify the Installation:

      • In the Terminal, type the following command and hit Enter:
        dotnet --version
        
      • You should see the version number of the .NET SDK you just installed.

    2. Installing .NET Runtime (Optional)

    The .NET SDK includes the .NET Runtime, so you typically don't need to install it separately unless you need just the runtime without the SDK.

    But if you do need to install the .NET Runtime separately:

    On Windows:

    1. Download the Installer:

    On macOS:

    1. Download the Installer:

    On Linux (Ubuntu):

    1. Install the .NET Runtime:

      • Open a Terminal and run the following command:
        sudo apt-get install -y dotnet-runtime-6.0
        
        (Replace 6.0 with the version number you need.)
    2. Verify the Installation:

      • In the Terminal, type the following command and hit Enter:
        dotnet --version
        
      • You should see the version number of the .NET Runtime you just installed.

    Conclusion

    After completing the installation steps, you should have the .NET SDK and Runtime installed on your machine. You can now create and run ASP.NET Core applications. Here’s a quick way to create a new ASP.NET Core application to verify everything works correctly:

    Creating a New ASP.NET Core Application

    1. Open Command Prompt (Windows) / Terminal (macOS/Linux).
    2. Navigate to the directory where you want to create the application:

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