Three steps and it worked as it said earlier

    > pip uninstall tensorflow-tensorboard 
    > pip uninstall tensorflow-gpu
    > pip install --upgrade tensorflow-gpu

But in case if you got error uninstalling "wrapt" try this two below command and hopefully everything works fine.

conda update --all
pip install --upgrade tensorflow==2.0.0-beta1

Refer to this original issue: https://github.com/tensorflow/tensorflow/issues/30191

I had the exact same error:

ERROR: tensorboard 2.0.2 has requirement setuptools>=41.0.0, but you'll have setuptools 40.6.2 which is incompatible.

Then I did the following three steps and it worked:

1) pip uninstall tensorflow-tensorboard 2) pip uninstall tensorflow-gpu 3) pip install --upgrade tensorflow-gpu

Then somehow I found this result. It seems that it has been fixed.

Installing collected packages: tensorflow-gpu, setuptools
Found existing installation: setuptools 40.6.2
Uninstalling setuptools-40.6.2:
Successfully uninstalled setuptools-40.6.2

Successfully installed setuptools-42.0.2 tensorflow-gpu-2.0.0

Uninstall TensorFlow using command pip uninstall tensorflow

Re-install it using the command pip install --upgrade tensorflow

Modify the METADATA file of tensorboard. Let it not complain the version of setuptools.

This solution works on MacOS. Edit file

/Library/Python/3.7/site-packages/tensorboard-2.0.2.dist-info/METADATA

Change "Requires-Dist: setuptools (>=41.0.0)" to "Requires-Dist: setuptools (>=40.0.0)"

Then it will not report the error.

I just did a pip install setuptools --upgrade

then

pip install tensorflow