我正在尝试安装一个Python软件（https://github.com/GuLinux/AstroPhoto-Plus），但在执行安装后的日志中遇到了这个错误：
Exception: Version mismatch: this is the 'cffi' package version 1.14.6, located in '/tmp/pip-build-env-kuxyuc2x/overlay/lib/python3.8/site-packages/cffi/api.py'.
When we import the top-level '_cffi_backend' extension module, we get version 1.14.0, located in '/usr/lib/python3/dist-packages/_cffi_backend.cpython-38-arm-linux-gnueabihf.so'. The two versions should be equal; check your installation.
据我所知，我有：
hamham@astroloutre:~/www$ pip show cffi
Name: cffi
Version: 1.14.0
Summary: Foreign Function Interface for Python calling C code.
Home-page: http://cffi.readthedocs.org
Author: Armin Rigo, Maciej Fijalkowski
Author-email: python-cffi@googlegroups.com
License: MIT
Location: /home/hamham/.local/lib/python3.8/site-packages
Requires: pycparser
Required-by:
我正在尝试安装1.14.6版本。
hamham@astroloutre:~/www$ pip install --upgrade cffi==1.14.6
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Processing /home/hamham/.cache/pip/wheels/21/a9/81/c074a48686fe8c1ffada1f9e5f53b553c0f766503c0b991c23/cffi-1.14.6-cp38-cp38-linux_armv7l.whl
Requirement already satisfied, skipping upgrade: pycparser in /home/hamham/.local/lib/python3.8/site-packages (from cffi==1.14.6) (2.20)
Installing collected packages: cffi
Attempting uninstall: cffi
Found existing installation: cffi 1.14.0
Uninstalling cffi-1.14.0:
Successfully uninstalled cffi-1.14.0
Successfully installed cffi-1.14.6
hamham@astroloutre:~/www$ pip show cffi
Name: cffi
Version: 1.14.6
Summary: Foreign Function Interface for Python calling C code.
Home-page: http://cffi.readthedocs.org
Author: Armin Rigo, Maciej Fijalkowski
Author-email: python-cffi@googlegroups.com
License: MIT
Location: /home/hamham/.local/lib/python3.8/site-packages
Requires: pycparser
Required-by:
重新安装后仍出现同样的错误：
Exception: Version mismatch: this is the 'cffi' package version 1.14.6, located in '/tmp/pip-build-env-34pknb8l/overlay/lib/python3.8/site-packages/cffi/api.py'. When we import the top-level '_cffi_backend' extension module, we get version 1.14.0, located in '/usr/lib/python3/dist-packages/_cffi_backend.cpython-38-arm-linux-gnueabihf.so'. The two versions should be equal; check your installation.
我不是Python开发人员，尽管我在GitHub上发布了一个问题，但没有得到回答（似乎自一年前以来该代码库就被遗弃了），我不知道该怎么办。
谢谢。