expecting a string with a ${{..}} expression or matrix error

[pcassaretto-cmc]

When using the following expression

strategy:
      matrix: ${{ fromJson(format('{{ "include"{0} [{{ "project"{0} "{1}" }}] }}',':',github.event.inputs.product)) }}

get the following error

expecting a string with ${{...}} expression or matrix, but found plain text node [syntax-check]

The expression works fine and will create a job instance for the single item?

Using actionlint via https://github.com/reviewdog/action-actionlint using release v.1.28.0 which uses actionlint 1.6.16

[pcassaretto-cmc]

Here is an action that can be manually invoked which will reproduce the issue

name: test manual invocation
on:
  workflow_dispatch:
    inputs:
      product:
        description: "The product for which to run this workflow"
        required: true

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{ fromJson(format('{{ "include"{0} [{{ "project"{0} "{1}" }}] }}',':',github.event.inputs.product)) }}

    steps:
      - uses: actions/[email protected]
      - run: |
          echo the project value is ${{ matrix.project }}

[rhysd]

This was fixed in v1.6.17.