NodeJS : Node js +Error: listen EADDRINUSE + Unhandled 'error' event

NodeJS : Node js +Error: listen EADDRINUSE + Unhandled 'error' event
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NodeJS : Node js +Error: listen EADDRINUSE + Unhandled 'error' event
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'error' listen Unhandled js : Node EADDRINUSE + +Error: NodeJS event