What does it mean when the message "npm" is not recognized as an internal or external command, operable program, or batch file is displayed?

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This message typically indicates that the Node Package Manager (npm) is not installed or is not properly configured on the computer. To resolve this issue, you may need to install or re-install Node.js, which includes npm as a component. Alternatively, you may need to add the npm executable to your system's Path environment variable to allow it to be recognized as a valid command.