The “Error: listen EADDRINUSE” typically occurs when you’re trying to start a server on a port that is already being used by another process. To fix this error, you can try the following solutions:
- Change the port number: Try changing the port number to a different value that is not already being used by another process. You can modify the port number in the code of your server or the configuration file if applicable.
- Stop the process using the port: You can use the following command to check which process is using the port:
sudo lsof -i :<port_number>
Replace <port_number> with the actual port number that you’re trying to use. This will display the process ID (PID) of the process using the port. You can then use the following command to kill the process:
kill -9 <PID>
- Replace <PID> with the actual process ID.
- Wait for the port to become available: If the port is being used by a process that is currently running, you can wait for the process to finish and release the port. Alternatively, you can restart your computer to ensure that all processes are terminated, and the port is released.
- Use a different network interface: If you have multiple network interfaces, you can try using a different interface to bind the server to. This can be achieved by modifying the network interface configuration in the code of your server or the configuration file if applicable.
Once you have implemented the solution, you should be able to start the server without encountering the “Error: listen EADDRINUSE” message.
