Since updating Spyder to version 5.1.5, I'm unable to install GeoPandas. I've tried the following:
conda install geopandas
conda install --channel conda-forge geopandas
conda install -c conda-forge geopandas
and
conda create -n geo_env
conda activate geo_env
conda config --env --add channels conda-forge
conda config --env --set channel_priority strict
conda install python=3 geopandas
and none seem to work. I've also installed all the necessary dependencies, with the exception of Fiona (which returns the same installation problem).
After some research and a helpful post, I figured out a solution. There must have been an error when I previously updated Spyder to 5.1.5, and even though I had uninstalled and reinstalled Anaconda a number of times, GeoPandas wouldn't install until I removed Spyder through the Anaconda Prompt.
conda remove spyder
conda remove python-language-server (may return error but not a problem)
conda update anaconda (may return error but not a problem)
conda install spyder=5.1.5
conda install pandas
conda install geopandas
conda install openpyxl (had to reinstall)