Complete output from command python setup.py egg_info:
    error in Flask setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-n99L5o/Flask/
You are using pip version 8.1.2, however version 22.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
section_end:1652888369:step_script
section_start:1652888369:cleanup_file_variables
Cleaning up project directory and file based variables
section_end:1652888369:cleanup_file_variables
ERROR: Job failed: exit status 1