Kill port when stop button not work

npx kill-port <port no>

Increase heap size on `./gradlew`

./gradlew bootRun --no-daemon -Dorg.gradle.jvmargs="-Xms512m -Xmx2048m"

If this command does not work then increase the request size on application.yml in Spring boot

spring:
  servlet:
    multipart:
      max-file-size: 1GB
      max-request-size: 2GB