Asp.Net Core Installing .Net Sdk And Runtime Complete Guide

 Last Update:2025-06-23T00:00:00     .NET School AI Teacher - SELECT ANY TEXT TO EXPLANATION.    8 mins read      Difficulty-Level: beginner

Understanding the Core Concepts of ASP.NET Core Installing .NET SDK and Runtime

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 .NET download page to find the latest versions and release notes.

2. Installing .NET SDK on Windows

  • Automatic Installation via Installer

    • Download the installer from the .NET Core SDK download page.
    • 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 https://dot.net/v1/dotnet-install.ps1 -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

  • Using Homebrew (Recommended)

    • First, ensure Homebrew is installed: 
      /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    • Install the .NET SDK using Homebrew: 
      brew install --cask dotnet-sdk

  • Manual Installation via Installer

    • Download the .NET SDK installer from the .NET Core SDK download page.
    • Open the downloaded DMG file and run the installer.
    • Follow the installation instructions and agree to any prompts.

4. Installing .NET SDK on Linux (Ubuntu Example)

  • Setting up Package Repositories

    • Register the Microsoft key and feed by installing the required packages: 
      wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb

  • Installing the .NET SDK

    • Update the product list and install the .NET SDK: 
      sudo apt-get update; \
sudo apt-get install -y apt-transport-https && \
sudo apt-get update && \
sudo apt-get install -y dotnet-sdk-6.0

  • Verification

    • After the installation process, open a new terminal window and run the following command to verify the .NET SDK installation: 
      dotnet --version

5. Installation on Other Linux Distributions

  • Many Linux distributions like Debian, Fedora, RHEL, and CentOS also support .NET SDK and Runtime installations.
  • Refer to the .NET installation guide for detailed step-by-step instructions.

6. Verifying Installation

  • After installation, validate your setup by running the dotnet --version command in the terminal or command prompt. This command will return the installed .NET SDK version.
  • To check the .NET Runtime version, you can create a simple console application and run it:

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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:

  2. Run the Installer:

    • Locate the downloaded .exe file in your Downloads folder.
    • Double-click on the installer and accept the license agreement.
    • Follow the on-screen instructions to proceed with the installation.
    • Once installation is complete, you will see a notification indicating success.

  3. Verify the Installation:

    • Open the Command Prompt (search for cmd in Start menu).
    • Type the following command and hit Enter: 
      dotnet --version
    • You should see the version number of the .NET SDK you just installed.

On macOS:

  1. Download the Installer:

  2. Run the Installer:

    • Locate the downloaded .pkg file in your Downloads folder.
    • Double-click on the installer and follow the on-screen instructions.
    • Enter your password when prompted and click Continue.

  3. Verify the Installation:

    • Open the Terminal (search for Terminal in Spotlight).
    • Type the following command and hit Enter: 
      dotnet --version
    • You should see the version number of the .NET SDK you just installed.

On Linux (Ubuntu):

  1. Register the Microsoft package signing key and feed:

    • Open a Terminal and run the following commands: 
      wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -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:

    • Go to the .NET download page.
    • Scroll down to the Runtime (includes ASP.NET Core Runtime) section.
    • Click on the Download .NET Runtime button.

  2. Run the Installer:

    • Locate the downloaded .exe file in your Downloads folder.
    • Double-click on the installer and accept the license agreement.
    • Follow the on-screen instructions to proceed with the installation.
    • Once installation is complete, you will see a notification indicating success.

  3. Verify the Installation:

    • Open the Command Prompt.
    • Type the following command and hit Enter: 
      dotnet --version
    • You should see the version number of the .NET SDK or Runtime you just installed.

On macOS:

  1. Download the Installer:

    • Go to the .NET download page.
    • Scroll down to the Runtime (includes ASP.NET Core Runtime) section.
    • Click on the Download .NET Runtime button.

  2. Run the Installer:

    • Locate the downloaded .pkg file in your Downloads folder.
    • Double-click on the installer and follow the on-screen instructions.
    • Enter your password when prompted and click Continue.

  3. Verify the Installation:

    • Open the Terminal.
    • Type the following command and hit Enter: 
      dotnet --version
    • You should see the version number of the .NET SDK or Runtime you just installed.

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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