Docker run cannot find package json

[gyi123]

Hi, I was able to run yarn web:start from CMD. However when I try to run this in Docker. I got package.json not found error.
Here is the docker file:

FROM node:16.13.0-alpine

set working directory

WORKDIR /
COPY ["yarn.lock", "package.json", "./"]
RUN yarn reset:unix
RUN yarn

add app

COPY . ./

start app

CMD ["yarn", "web:start"]

After successful docker build, I try to run in docker desktop:
docker run -p:3000:3000 myimage
I got this error:
yarn run v1.22.15
$ yarn workspace @my-app/web start
$ craco start
/node_modules/find-root/index.js:19
throw new Error('package.json not found in path')
^

Error: package.json not found in path
at findRoot (/node_modules/find-root/index.js:19:11)
at findRoot (/node_modules/find-root/index.js:28:10)
at findRoot (/node_modules/find-root/index.js:28:10)
at findRoot (/node_modules/find-root/index.js:28:10)
at findRoot (/node_modules/find-root/index.js:28:10)

Any idea on this?
Thanks for the help

[gyi123]

I think I solved it. My docker file is wrong. need to use WORKDIR /repo then COPY