Dockerfile Image Build Fails

[manojselvakumar]

Image build process from the Dockerfile fails and I've included the error messages resulted from the build process. Can you please let me know how to fix this?

Step 7/17 : RUN apt-get install -y build-essential python3.6 python3.6-dev python3-pip python3.6-venv
 ---> Running in 45f12b924b08
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package python3.6
E: Couldn't find any package by glob 'python3.6'
E: Couldn't find any package by regex 'python3.6'
E: Unable to locate package python3.6-dev
E: Couldn't find any package by glob 'python3.6-dev'
E: Couldn't find any package by regex 'python3.6-dev'
E: Unable to locate package python3.6-venv
E: Couldn't find any package by glob 'python3.6-venv'
E: Couldn't find any package by regex 'python3.6-venv'
The command '/bin/sh -c apt-get install -y build-essential python3.6 python3.6-dev python3-pip python3.6-venv' returned a non-zero code: 100