如何从 powershell 运行 do.net new？

Question

I have installed do.net-sdk-7.0.101-win-x86.exe by downloading it and running it. This is verified by the fact that if I try to run it again it goes to a different screen where I can modify it.

I am attempting to follow the instructions for a course on Udemy on creating a console app, however I am purposely doing something different. In the course the instructor is explaining to set everything up under his user directory (in windows). I would like not to do that.

The reason I don't want to do that Is I have a folder already that has my work stuff in it and I want this to work for my work stuff also. For me, this folder is C:\SourceCode\ (something). I have a folder called GitHub that has all the repositories I've downloaded for work and I have another folder called 'Local' which I am using for learning. So, this is the output I try to create a new HelloWorld console app:

PS C:\SourceCode\Local\dotnet-course-code> dotnet new -n HelloWorld
The command could not be loaded, possibly because:
  * You intended to execute a .NET application:
      The application 'new' does not exist.
  * You intended to execute a .NET SDK command:
      No .NET SDKs were found.

Download a .NET SDK:
https://aka.ms/dotnet-download

Learn about SDK resolution:
https://aka.ms/dotnet/sdk-not-found
PS C:\SourceCode\Local\dotnet-course-code>

I did some googling already to try to solve the problem, One insightful post had me run the following command which I believe proves that the do.net thing was installed (but I could be wrong)

PS C:\SourceCode\Local\dotnet-course-code> Get-Command dotnet |Format-List


Name            : dotnet.exe
CommandType     : Application
Definition      : C:\Program Files\dotnet\dotnet.exe
Extension       : .exe
Path            : C:\Program Files\dotnet\dotnet.exe
FileVersionInfo : File:             C:\Program Files\dotnet\dotnet.exe
                  InternalName:     .NET Host
                  OriginalFilename: .NET Host
                  FileVersion:      6,0,922,41905 @Commit: 163a63591cf9e9b682063cf3995948c2b885a042
                  FileDescription:  .NET Host
                  Product:          Microsoft® .NET Framework
                  ProductVersion:   6.0.9 @Commit: 163a63591cf9e9b682063cf3995948c2b885a042
                  Debug:            False
                  Patched:          False
                  PreRelease:       False
                  PrivateBuild:     False
                  SpecialBuild:     False
                  Language:         English (United States)

I would like to know why this doesn't work as expected. Note this is on a brand new machine running windows 11 and these commands are being run in powershell.

Answer 1

This is the crucial part of the error message:

  * You intended to execute a .NET SDK command:
      No .NET SDKs were found.

In order to create source-code projects , you need to download the .NET SDK , specifically.

The presence of do.net.exe alone does not imply that an SDK installed, given that it is possible to install a runtime only.

If you run do.net --info , you'll see what SDKs and runtimes are installed.

If no SDK is listed, you'll have to install one.

Update : As you note, the problem was that you had accidentally created parallel installations (a x86 version alongside an x64 one), and the one you tried to use lacked an SDK.

---

Once one is installed, your command should work if you also specify a project type , which is required , as topsail points out; eg, to create a console application in subfolder HelloWorld :

# OK, once an SDK is installed.
dotnet new console -n HelloWorld