错误：子进程退出并出现错误。 - Python

错误：子进程退出-错误，python setup.py Egg_info 未成功运行。 我知道还有一些类似的问题。但尝试这些解决方案后，错误仍然存​​在。我想安装一个名为MIDI-DDSP它显示一个错误。

Requirement already satisfied: music21 in ./Library/Python/3.8/lib/python/site-packages (from midi-ddsp) (7.3.3)
Requirement already satisfied: pandas in ./Library/Python/3.8/lib/python/site-packages (from midi-ddsp) (1.3.3)
Requirement already satisfied: pretty-midi in ./Library/Python/3.8/lib/python/site-packages (from midi-ddsp) (0.2.9)
Requirement already satisfied: mir-eval in ./Library/Python/3.8/lib/python/site-packages (from ddsp==3.2.0->midi-ddsp) (0.7)
Requirement already satisfied: tensorflow-addons in ./Library/Python/3.8/lib/python/site-packages (from ddsp==3.2.0->midi-ddsp) (0.17.1)
Requirement already satisfied: cloudml-hypertune in ./Library/Python/3.8/lib/python/site-packages (from ddsp==3.2.0->midi-ddsp) (0.1.0.dev6)
Collecting crepe>=0.0.11
  Using cached crepe-0.0.12.tar.gz (15 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1

由于代码太长，如果我需要粘贴更多，请告诉我！

我尝试过upgrade pip, pip3 install midi-ddsp --use-deprecated=legacy-resolver, pip3 install --upgrade setuptools, easy_install -U setuptools 等等。但他们都无法工作。希望有人能帮助我，谢谢！

我在尝试运行时遇到了完全相同的错误：

pip install dotenv

经过一番查找后，我意识到我弄错了包名称。正确的命令是：

pip install python-dotenv

也许尝试谷歌搜索“pip your-package-name”来找到PyPi您的包裹页面并仔细检查您使用的名称是否正确？令人烦恼的是 pip 错误消息没有更具描述性。