Once you've installed, open a new command prompt and run the following command:
Once you've installed, open a new terminal and run the following command:
Command prompt
dotnet
If the installation succeeded, you should see an output similar to the following:
Command prompt
Usage: dotnet [options]Usage: dotnet [path-to-application]Options:-h|--help Display help.--info Display .NET information.--list-sdks Display the installed SDKs.--list-runtimes Display the installed runtimes.path-to-application:The path to an application .dll file to execute.
Got an error?
If you receive a 'dotnet' is not recognized as an internal or external command error, make sure you opened a new command prompt. If you can't resolve the issue, use the I ran into an issue button to get help fixing the problem.
Create your app
In your command prompt, run the following command to create your app:
In your terminal, run the following command to create your app:
Command prompt
dotnet new webApp -o myWebApp --no-https
Then, navigate to the new directory created by the previous command:
Command prompt
cd myWebApp
What do these commands mean?
The dotnet new command creates a new application.
The webApp parameter selects what template to use when creating your app.
The -o parameter creates a directory named myWebApp where your app is stored.
The --no-https flag specifies not to enable HTTPS.
The cd myWebApp command puts you into the newly created app directory.
What files were created?
Several files were created in the myWebApp directory, to give you a simple web application that is ready to run.
Startup.cs contains all the settings and configurations.
The myWebApp/Pages directory contains some example web pages for the application.
myWebApp.csproj defines what libraries are referenced etc.
Got an error?
If you receive a message similar to Template "ASP.NET Core Web App" could not be created. Access to the path 'C:\Windows\System32\myWebApp' is denied, change your current directory to one where you have permissions to create a new folder and try to run the command again. If you can't resolve the issue, use the I ran into an issue button to get help fixing the problem.
Run your app
In your command prompt, run the following command:
In your terminal, run the following command:
Command prompt
dotnet run
Wait for the app to display that it's listening on http://localhost:5000, and then open a new browser window and navigate to http://localhost:5000
Congratulations, you've built and run your first .NET web app!
Edit your code
Open Pages/Index.cshtml in any text editor and replace all of the code with the following, then save the file.
Index.cshtml
@page@model IndexModel@{ ViewData["Title"] = "Home page";}<div class="text-center"> <h1>Hello, world!</h1> <p>The time on the server is @DateTime.Now</p></div>
Rerun your app
Press CTRL+C on your command prompt to end the previous dotnet run command that is running the site locally.
Press CTRL+C on your terminal to end the previous dotnet run command that is running the site locally by pressing CTRL+C on your terminal.
Then, run the following command to re-launch the site:
Command prompt
dotnet run
Refresh the browser to see the change. You should see an output similar to the following:
Next steps
Now that you've got the basics, continue building your first ASP.NET app with Razor Pages.
