try

.github/workflows/flutter-build.yml

@@ -60,7 +60,7 @@ jobs:
 
       - uses: ilharp/sign-android-release@v1
         name: Sign app APK
-        id: sign_app
+        id: sign_app_apk
         with:
           releaseDir: build/app/outputs/apk/release
           signingKey: ${{ secrets.KEYSTORE }}
@@ -70,6 +70,7 @@ jobs:
           buildToolsVersion: 33.0.0
 
 
+
       # Upload generated apk to the artifacts.
       # - name: relase output 
       #   uses: actions/upload-artifact@v1
@@ -94,10 +95,34 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: "build/app/outputs/apk/release/app-release.apk"
+          asset_path: ${{steps.sign_app.outputs.signedFile}}
           asset_name: reciper-release-${{ steps.version.outputs.version }}.apk
           asset_content_type: application/apk
 
+      - name: build appbundle
+        run: flutter build appbundle
+
+      - uses: ilharp/sign-android-release@v1
+        name: Sign app APK
+        id: sign_app_bundle
+        with:
+          releaseDir: build/app/outputs/bundle/release
+          signingKey: ${{ secrets.KEYSTORE }}
+          keyAlias: ${{ secrets.SIGNING_KEY_ALIAS }}
+          keyStorePassword: ${{ secrets.SIGNING_STORE_PASSWORD }}
+          keyPassword: ${{ secrets.SIGNING_KEY_PASSWORD }}
+          buildToolsVersion: 33.0.0
+
+      - name: Upload release asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ${{steps.sign_app.outputs.signedFile}}
+          asset_name: reciper-release-${{ steps.version.outputs.version }}.aab
+          asset_content_type: application/aab
+
       - name: Publish release
         uses: eregon/[email protected]
         env: