ERROR in Docker build for python containers in 2.x

In the build log below ... to worry or not to worry ...

ERROR: pyvoltha 0.2.0 has requirement afkak==3.0.0.dev20181106, but you'll have afkak 19.6.0a1 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement grpcio==1.16.0, but you'll have grpcio 1.3.5 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement grpcio-tools==1.16.0, but you'll have grpcio-tools 1.3.5 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement pyflakes==2.1.0, but you'll have pyflakes 1.6.0 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement pylint==1.9.4, but you'll have pylint 1.7.6 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement python-consul==0.6.2, but you'll have python-consul 1.1.0.dev0 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement pyvoltha==0.1.8, but you'll have pyvoltha 0.2.0 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement six==1.12.0, but you'll have six 1.11.0 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement Twisted==18.7.0, but you'll have twisted 17.9.0 which is incompatible.
ERROR: pyvoltha 0.2.0 has requirement voltha-protos==0.1.2, but you'll have voltha-protos 0.1.4 which is incompatible.
ERROR: flake8 3.7.8 has requirement pyflakes<2.2.0,>=2.1.0, but you'll have pyflakes 1.6.0 which is incompatible.
ERROR: afkak 19.6.0a1 has requirement Twisted>=18.7.0, but you'll have twisted 17.9.0 which is incompatible.