If you meant a for testing:
Another service might be using port 11501. Use a terminal command to see what is using that port: Windows: netstat -ano | findstr :11501 Linux/macOS: lsof -i :11501 3. Securing Your Localhost localhost11501 exclusive
Open the Task Manager , go to the Details tab, locate the matching PID, right-click it, and select End Task . Alternatively, run taskkill /PID [Your_PID_Here] /F in your admin Command Prompt. If you meant a for testing: Another service