Port 4200 is already in use. Use '--port' to specify a different port
sudo lsof -t -i tcp:4200 | xargs kill -9Port 4200 is already in use. Use '--port' to specify a different port
sudo lsof -t -i tcp:4200 | xargs kill -9cancel ng server port
Using your terminal, find the PID of port 4200
netstat -ano | findstr :4200
Kill task by the PID Number (Replace 15940)
taskkill /PID 15940 /FUse '--port' to specify a different port.
ng serve --open --port 4201Copyright © 2021 Codeinu
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