./gradlew: No such file or directory in pipelines android kotlin

[Wutichai Yensodsai]

pipelines:
  pull-requests: # pipeline run only pull-requests
    "**":
      - step:
          name: Build Debug
          services:
            [ docker-with-more-memory ]
          size: 2x
          caches:
            - gradle
          script:
            - while true; do date && echo "Memory usage in megabytes:" && echo $((`cat /sys/fs/cgroup/memory/memory.memsw.usage_in_bytes | awk '{print $1}'`/1048576)) && echo "" && sleep 30; done &
            - ./gradlew assembleDebug
          artifacts:
            paths:
              - app/build/outputs/apk/debug/app-debug.apk
      - step:
          name: Detekt
          services:
            [ docker-with-more-memory ]
          size: 2x
          caches:
            - gradle
          script:
            - while true; do date && echo "Memory usage in megabytes:" && echo $((`cat /sys/fs/cgroup/memory/memory.memsw.usage_in_bytes | awk '{print $1}'`/1048576)) && echo "" && sleep 30; done &
            - ./gradlew detektAll
          artifacts:
            - build/reports/detekt/**

why my pipelines have this error 

[catkutay]

error