when building python-flask webapp docker image. I am getting error with "pip install -r requirements.txt" command .
RUN pip install -r requirements.txt
---> Running in 40b23f91d616
Processing /tmp/build/80754af9/bidict_1607541094382/work
ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory: '/tmp/build/80754af9/bidict_1607541094382/work'
The command '/bin/sh -c pip install -r requirements.txt' returned a non-zero code: 1
Source code with Dockerfile is available on github profile whose link is https://github.com/OCTO01032020-araju/Travel-WebApp-Flask.git
My Dockerfile:
FROM python:alpine3.7
COPY . /app
WORKDIR /app
ADD requirements.txt /app/
RUN pip install --upgrade pip
RUN pip install -r requirements.txt
EXPOSE 5001
ENTRYPOINT [ "python" ]
CMD [ "app.py" ]