I have Anaconda Python 3.6 on Windows 7. I frequently use GeoPandas and it worked fine. Yesterday I tried to install rasterio and georasters, and they seemed to install fine u
Starting with the python environment that works fine, and installing the packages with the flag --no-update-dependencies
allowed the packages to get installed and work with no problems. They may not be the most up to date versions, but they work.
conda install rasterio --no-update-dependencies
conda install georasters --no-update-dependencies
This may also be a solution for anyone trying to install packages that break your python environment.