title: No such file or directory error while running Docker image
body: <p>I am learning Docker concept and trying to make a Docker image of my project. I have installed Docker Desktop for Windows and build the image successfully by using below command:</p>
  
  <pre><code>docker build -t ${IMAGE_NAME} .
  </code></pre>
  
  <p>But when I run following command <code>docker run ${IMAGE_NAME}:${TAG}</code> I am getting following file not found error:</p>
  
  <blockquote>
    <p>D:\Projects\AI360\deep_auto_backbar_api>docker run dsbyprateekg:prateek_gupta
    python3: can't open file '/Prepare_Dataset/server_engine/server.py': [Errno 2] No such file or directory</p>
  </blockquote>
  
  <p>My project structure is looks like:</p>
  
  <p><a href="https://i.stack.imgur.com/6zbvl.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/6zbvl.jpg" alt="enter image description here"></a></p>
  
  <p>And my Dockerfile.txt has following instructions:</p>
  
  <pre><code>FROM python: 3.6-stretch
  MAINTAINER PrateekG
  
  # install build utilities
  RUN apt-get update &amp;&amp; \
      apt-get install -y gcc make apt-transport-https ca-certificates build-essential
  
  # check our python environment
  RUN python3 version RUN pip3 --version
  
  # Installing python dependencies
  COPY requirements.txt .
  RUN pip install --no-cache-dir -r requirements.txt
  
  # Copy all the files from the project's root to the working directory 
  COPY Prepare_Dataset/ .
  
  # Running Python Application
  CMD ["python3", "/Prepare_Dataset/server_engine/server.py"]
  </code></pre>
  
  <p>I suspect I am missing something related to file path. Please see my Dockerfile and my project structure and help me to find out what I am doing wrong here.</p>