在vscode中创建venv之后，我已经安装了pip，然后在从github复制存储库之后尝试使用pip安装requirements.txt文件。在成功安装其他要求的同时，系统尝试安装pycld2时出现问题，出现以下错误
> error: command 'clang' failed with exit status 1 error: command 'clang' failed with exit status 1
----------------------------------------
ERROR: Failed building wheel for pycld2
Running setup.py clean for pycld2
Failed to build pycld2
DEPRECATION: Could not build wheels for pycld2 which do not use PEP 517. pip will fall back to legacy 'setup.py install' for these. pip 21.0 will remove support for this functionality. A possible replacement is to fix the wheel build issue reported above.
我尝试更新clang版本和gcc。而且还使用'pip3 install wheel'安装了车轮
gcc version : 10.2.0
clang version 12.0.0 (clang-1200.0.32.2)
Target: x86_64-apple-darwin19.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
请让我知道我错过了什么。预先感谢