Error: listen EADDRINUSE: address already in use :::80 [How to Solve]

The port is occupied. There may be a conflict between the port settings of the previous project and the current project.

1. Open the terminal

2. Enter netstat - ano | findstr 80

3. Find the PID occupied by port 80

4. Execute the close command, tskill + PID, and terminate the port operation.

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