尝试在python中安装软件包时遇到问题。具体来说，我正在Quantecon网站上学习该语言，该网站提供了以下代码行，以便在提示符下安装软件包（注意：我已经安装了anaconda）：
# Install Python packages
conda install geopandas python-graphviz
conda install -c conda-forge nodejs
pip install qeds pyLDAvis gensim folium xgboost descartes pyarrow graphviz --upgrade
但是，当我运行conda install geopandas python-graphviz时，提示返回错误：
RemoveError: 'setuptools' is a dependency of conda and cannot be removed from
conda's operating environment.
寻找其他答案，我尝试运行“ conda更新conda”和“ conda更新setuptools”，但是“ conda更新conda”返回相同的错误：
RemoveError: 'setuptools' is a dependency of conda and cannot be removed from
conda's operating environment.
“ conda update setuptools”返回错误时：
PackageNotInstalledError: Package is not installed in prefix.
prefix: C:\Users\franc\anaconda3
package name: setuptools
我已打印出整个安装过程（在“重要”部分之间使用.......），以防它帮助某人解决问题。如果有人可以帮助我，我将不胜感激。预先感谢！
Collecting package metadata (current_repodata.json): done
Solving environment: /
The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistency:
- defaults/win-64::alabaster==0.7.12=py37_0
- defaults/win-64::anaconda==2020.02=py37_0
.......
done
==> WARNING: A newer version of conda exists. <==
current version: 4.8.2
latest version: 4.8.3
Please update conda by running
$ conda update -n base -c defaults conda
## Package Plan ##
environment location: C:\Users\franc\anaconda3
added / updated specs:
- geopandas
- python-graphviz
The following packages will be downloaded:
..........
The following NEW packages will be INSTALLED:
.........
The following packages will be UPDATED:
.........
The following packages will be DOWNGRADED:
anaconda 2020.02-py37_0 --> custom-py37_1
Proceed ([y]/n)? y
Downloading and Extracting Packages
.........
Preparing transaction: done
Verifying transaction: failed
RemoveError: 'setuptools' is a dependency of conda and cannot be removed from
conda's operating environment.