Trying to publish single executable in terminal in visual studio but I get error message

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C#

Visual-Studio

Terminal is returning the following:

"Could not execute because the specified command or file was not found.
Possible reasons for this include:
* You misspelled a built-in dotnet command.
* You intended to execute a .NET program, but dotnet--r does not exist.
* You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH."

Goal is to create a single executable file. This is what I input in terminal:

dotnet -r publish win-x64 -p:PublishSingleFile=true -p:IncludeNativeLibrariesForSelfExtract=true --output "C:\Users\C124\OneDrive\Desktop\Single\"

What I have tried:

I am able to publish using Publish in Build menu but this gives me a setup file which is not what I want. Instead, I want one executable ready to go, not a setup file. Thank you so much!