Deploying angular app to Azure with Github Actions failed. package.json not found

Question

I am trying to deploy an Angular(10) WebApp to Azure with CI/CD using the Github Actions but I get an error saying the package.json cannot be found while running the npm install command.

This is my yml file

name: Deploy to Azure with Hexa.ru
on:
  push:
    branches:
    - main
    - release/*

jobs:
  build:

    runs-on: windows-latest

    strategy:
      matrix:
        node-version: [12.x]

    steps:
    - uses: actions/checkout@v1
    - name: Use Node.js ${{ matrix.node-version }}
      uses: actions/setup-node@v1
      with:
        node-version: ${{ matrix.node-version }}
    - name: npm install
      run: |
        npm --prefix D:\home\site\wwwroot\SleepDiary\package.json install
    - name: npm build, and deploy
      env:
        AZURE_SERVICE_PRINCIPAL_ID: ${{ secrets.AZURE_SERVICE_PRINCIPAL_ID }}
        AZURE_SERVICE_PRINCIPAL_PASSWORD: ${{ secrets.AZURE_SERVICE_PRINCIPAL_PASSWORD }}
        AZURE_SERVICE_PRINCIPAL_TENANT: ${{ secrets.AZURE_SERVICE_PRINCIPAL_TENANT }}
      run: |
        npm run hexa:login
        npm run build -- --prod
        npm run hexa:deploy

And the error:

Run npm --prefix D:\home\site\wwwroot\SleepDiary\package.json install
  npm --prefix D:\home\site\wwwroot\SleepDiary\package.json install
  shell: C:\Program Files\PowerShell\7\pwsh.EXE -command ". '{0}'"
npm ERR! code ENOLOCAL
npm ERR! Could not install from "" as it does not contain a package.json file.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\npm\cache\_logs\2020-09-28T06_32_50_591Z-debug.log
Error: Process completed with exit code 1.

I also tried without the parameter --prefix and the error remains (similar)

Run npm install
  npm install
  shell: C:\Program Files\PowerShell\7\pwsh.EXE -command ". '{0}'"
npm WARN saveError ENOENT: no such file or directory, open 'D:\a\SleepDiary\SleepDiary\package.json'
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN enoent ENOENT: no such file or directory, open 'D:\a\SleepDiary\SleepDiary\package.json'
npm WARN SleepDiary No description
npm WARN SleepDiary No repository field.
npm WARN SleepDiary No README data
npm WARN SleepDiary No license field.

I've checked the path in the azure console of my appservice and it should be D:\home\site\wwwroot\SleepDiary (you can ignore the dist folder, I created a kudu deployment that works just for testing but I want to achieve the same result with github actions)

Any idea how to make it run?