could not connect to TCP port 5554: Connection refused

Hello

I have an error when I try to start an emulator. My workflow is

name: Generate screenshots

on: [pull_request]

jobs:
  screenshots:
    name: Generate screenshots
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v2

     - name: Set up JDK 11
        uses: actions/setup-java@v2
        with:
          distribution: 'adopt'
          java-version: '11'
      - name: Cache Gradle packages
        uses: actions/cache@v2.1.6
        with:
          path: |
            ~/.gradle/caches
            .gradle
          key: ${{ runner.os }}-gradle-quality-${{ hashFiles('**/*.gradle.kts') }}
          restore-keys: |
            ${{ runner.os }}-gradle-quality-
      - name: Cache Gradle wrapper
        uses: actions/cache@v2.1.6
        with:
          path: ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradlew') }}
          restore-keys: |
            ${{ runner.os }}-gradle-wrapper-
      - uses: actions/setup-ruby@v1
        with:
          ruby-version: '2.6'
          bundler-cache: true
      - name: create AVD
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: 28
          target: default
          arch: x86
          profile: Nexus 6
          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          disable-animations: true
          script: echo "Generated AVD."

and the error

/Users/runner/android-sdk/platform-tools/adb -s emulator-5554 emu kill
error: could not connect to TCP port 5554: Connection refused
The process '/Users/runner/android-sdk/platform-tools/adb' failed with exit code 1
Error: The process '/bin/sh' failed with exit code 1

Thanks!