Flutter codebase to APK build in GitHub Actions returns 'undefined: No tag found in ref or input!'

Question

I'm using the following Actions YAML to try to build an Android APK from a Flutter app:

name: CI
on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
jobs:
  build-and-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v1
      # we need java to build android apks
      - uses: actions/setup-java@v1
        with:
          java-version: '12.x'
      # this flutter action does the heavy lifting for us
      - uses: subosito/flutter-action@v1
        with:
          channel: 'stable'
      # get packages as you used to in your computer
      - run: flutter pub get
      # Now build apk
      - run: flutter build apk --split-per-abi
      # now relase the just created build
      - name: Create a Release APK
        uses: ncipollo/release-action@v1
        with:
          artifacts: "build/app/outputs/apk/release/*.apk"
          token: ${{ secrets.TOKEN }}

When this is ran, it fails, returning:

0s
Run ncipollo/release-action@v1
  with:
    artifacts: build/app/outputs/apk/release/*.apk
    token: ***
    omitBody: false
    omitBodyDuringUpdate: false
    omitName: false
    omitNameDuringUpdate: false
    replacesArtifacts: true
  env:
    JAVA_HOME_12.0.2_x64: /opt/hostedtoolcache/jdk/12.0.2/x64
    JAVA_HOME: /opt/hostedtoolcache/jdk/12.0.2/x64
    JAVA_HOME_12_0_2_X64: /opt/hostedtoolcache/jdk/12.0.2/x64
    FLUTTER_HOME: /opt/hostedtoolcache/flutter/1.22.0-stable/x64
Error: Error undefined: No tag found in ref or input!

At the 'Create and Release APK' stage of the action. I'm trying to figure this out. What is my YAML missing, or is this a one-off scenario?

user_3241243 · Answer

As per the notes you either need to specify an existing tag or specify a branch or commit for the commit input of the action, based on which a tag will be created:

You must provide a tag either via the action input or the git ref (i.e push / create a tag). If you do not the action will fail.

If the tag of the release you are creating does not exist yet, you should set both the tag and commit action inputs. commit can point to a commit hash or a branch name (ex - main).

from https://github.com/ncipollo/release-action#notes

Using the following will give you a new version tag with every run, where the last place of the version is incremented for every run.

[...]
# now relase the just created build
      - name: Create a Release APK
        uses: ncipollo/release-action@v1
        with:
          artifacts: "build/app/outputs/apk/release/*.apk"
          token: ${{ secrets.TOKEN }}
          commit: master
          tag: v1.0.${{ github.run_number }}

Flutter codebase to APK build in GitHub Actions returns 'undefined: No tag found in ref or input!'

1 Answers