How to persist to Windows workspace?

Build Environment
1

How do I persist files when using Windows orb?

Here are my relevant parts of my yaml file:

orbs:
  win: circleci/windows@4.1.1

jobs:
  win_build:
    executor:
      name: win/default
    steps:
      - checkout
      # Create build directory and build the project
      - run:
          name: Build the project
          shell: cmd
          command: |
            mkdir build
            cd build
            cmake -G "Visual Studio 16 2019" ..
            cmake --build . --config Release
      - persist_to_workspace:
          root: C:\Users\circleci\project\build\Release
          paths:
            - night
  win_test:
    executor:
      name: win/default
    steps:
      - checkout
      - attach_workspace:
          at: C:\Users\circleci\project\build\Release
      - run:
          name: Run tests
          command: |
            cd tests
            bash test_night.sh /home/circleci/project/build/night

Thanks,

2

However, when I run it, it gives me this error on the Persisting to workspace step:

Error locating workspace root directory: CreateFile C:\Users\circleci\project\build\Release: The system cannot find the file specified.