Unable to publish to NPM

[Lawrence Wagerfield]

I keep receiving the following error in my CI pipeline:

Run pascalgn/npm-publish-action@1.3.5
...
npm ERR! code E404
npm ERR! 404 Not Found - PUT https://registry.npmjs.org/upload-transformation-sdk - Not found
npm ERR! 404 
npm ERR! 404  'upload-transformation-sdk@0.0.2' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)

My config is as follows:

name: Continuous Integration

on:
  pull_request:
    branches: ["*"]
  push:
    branches: ["*"]

jobs:
  ci:
    name: "Continuous Integration"
    runs-on: ubuntu-latest
    steps:
      - name: "Checkout code"
        uses: actions/checkout@v2

      ...

      - name: "Publish (sdk)"
        if: github.ref == 'refs/heads/main'
        uses: pascalgn/npm-publish-action@1.3.5
        with:
          tag_name: "v%s"
          tag_message: "v%s"
          commit_pattern: "^Release (\\S+)"
          workspace: "./sdk"
          publish_command: "npm"
          publish_args: "--non-interactive"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Automatically generated by GitHub / is not in our secrets.
          NPM_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }}

I have set a repository-level secret for NPM_AUTH_TOKEN:

I have even tried both publish and automation token types:

Definitely no typos anywhere.

What am I missing?

[Lawrence Wagerfield]

Switching to yarn fixes it:

          publish_command: "yarn"