Project residing in a subdirectory: caching fails

[urban-adeininger]

I have a project in a subdirectory website, inside this directory, there exists package.json, pnpm-lock-yaml and pnpm-workspace.yaml. I want to use pnpm inside this directory via a GitHub action. This is the relevant part of my GitHub workflow file:

jobs:
  build:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./website
    steps:
      - name: Checkout your repository using git
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Set up pnpm
        uses: pnpm/setup@c9883cc79df532ad1a7b81bf9ab944ceb090d65c # v2.0.0
        with:
          runtime: node@26
          version: 11
          cache: true

While running this workflow action, I'm getting an error:

Run pnpm/setup@c9883cc79df532ad1a7b81bf9ab944ceb090d65c
  with:
    runtime: node@26
    version: 11
    cache: true
    dest: ~/setup-pnpm
    cache-dependency-path: pnpm-lock.yaml
    package-json-file: package.json
    install: true
    token: ***
  
Installing pnpm...
  Downloading pnpm 11.20.0 from https://github.com/pnpm/pnpm/releases/download/v11.20.0/pnpm-linux-x64.tar.gz
Installation Completed!
Installing runtime node@26...
  Progress: resolved 1, reused 0, downloaded 0, added 0
  Packages: +1
  +
  Progress: resolved 1, reused 0, downloaded 1, added 0
  Packages are hard linked from the content-addressable store to the virtual store.
    Content-addressable store is at: /home/runner/setup-pnpm/store/v11
    Virtual store is at:             store/v11/links
  Progress: resolved 1, reused 0, downloaded 1, added 1, done
  global:
  + node 26.7.0
  Done in 1.6s using pnpm v11.20.0
Restoring cache...
  /home/runner/setup-pnpm/pnpm store path
  /home/runner/setup-pnpm/store/v11
  Error: Some specified paths were not resolved, unable to cache dependencies.
      at lhe (/home/runner/work/_actions/pnpm/setup/c9883cc79df532ad1a7b81bf9ab944ceb090d65c/dist/index.js:314:31904)
  Error: Error: Some specified paths were not resolved, unable to cache dependencies.
      at async kEt (/home/runner/work/_actions/pnpm/setup/c9883cc79df532ad1a7b81bf9ab944ceb090d65c/dist/index.js:314:32738)
      at async K0t (/home/runner/work/_actions/pnpm/setup/c9883cc79df532ad1a7b81bf9ab944ceb090d65c/dist/index.js:328:3785)
      at async W0t (/home/runner/work/_actions/pnpm/setup/c9883cc79df532ad1a7b81bf9ab944ceb090d65c/dist/index.js:328:3521)

After setting cache: false, the action succeeds.

Caching should work even if a working-directory is defined for the action.