Error when deploying node.js app on Windows

Hi, my node.js app deployment is failing on Windows 10 with the error below. I’m running fly launch from the root folder of my application. There is a yarn.lock file in this directory.
I’ve tried running fly deploy --local-only and get the same error.

=> ERROR [build 2/6] COPY --link package.json yarn.lock ./ 0.0s

[build 2/6] COPY --link package.json yarn.lock ./:


Error: failed to fetch an image or build from source: error building: failed to solve: failed to compute cache key: failed to calculate checksum of ref d68c46ff-e8b3-4b62-9d50-445a5902d34d::efgfc8l6g4erhs9uxnyv0vgkw: “/yarn.lock”: not found

Dockerfile:

syntax = docker/dockerfile:1

Adjust NODE_VERSION as desired

ARG NODE_VERSION=16.20.2
FROM node:${NODE_VERSION}-slim as base

LABEL fly_launch_runtime=“Node.js”

Node.js app lives here

WORKDIR /app

Set production environment

ENV NODE_ENV=“production”
ARG YARN_VERSION=1.22.22
RUN npm install -g yarn@$YARN_VERSION --force

Throw-away build stage to reduce size of final image

FROM base as build

Install packages needed to build node modules

RUN apt-get update -qq &&
apt-get install --no-install-recommends -y build-essential node-gyp pkg-config python

Install node modules

COPY --link package.json yarn.lock ./
RUN yarn install --frozen-lockfile --production=false

Copy application code

COPY --link . .

Build application

RUN yarn run build

Remove development dependencies

RUN yarn install --production=true

Final stage for app image

FROM base

Copy built application

COPY --from=build /app /app

Start the server by default, this can be overwritten at runtime

EXPOSE 3000
CMD [ “yarn”, “run”, “start” ]