相关疑难解决方法(0)

我正在尝试使用date一步保存变量名称。但是，在后面的步骤中，它似乎是未定义的（或空的？）。我在这里缺少什么？

jobs:
  # Create release branch for the week
  branch:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Format the date of next Tuesday
        id: tuesday
        run: echo "abbr=$(date -v+tuesday +'%y%m%d')" >> $GITHUB_ENV

      - name: Create a branch with next tuesday's date
        uses: peterjgrainger/action-create-branch@v2.0.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          branch: release/${{ steps.tuesday.outputs.abbr }}

错误：

refs/heads/release/ is not a valid ref name.