how to fix this error in windows, when I want to show dotnet --version

[SajanaFathima]

The command could not be loaded, possibly because:

You intended to execute a .NET application:
The application '--version' 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

[baronfel]

Can you provide the output of running dotnet --info? That will help diagnose the setup of your current .NET SDK installation.