How Do I Debug "Error: Spawn Enoent" on Node. Js?

When I get the following error:

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: spawn ENOENT
    at errnoException (child_process.js:1000:11)
    at Process.ChildProcess._handle.onexit (child_process.js:791:34)

What procedure can I follow to fix it?

Author note: Lots of issues with this error encouraged me to post this question for future references.

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