【开发问题解决】npx create-react-app 无法执行安装的问题处理_you are running `create-react-app` 4.0.1, which is

在使用npx create-react-app 命令，得到命令行反馈

You are running `create-react-app` 4.0.1, which is behind the latest release (4.0.2).

We no longer support global installation of Create React App.

Please remove any global installs with one of the following commands:
- npm uninstall -g create-react-app
- yarn global remove create-react-app

The latest instructions for creating a new app can be found here:
https://create-react-app.dev/docs/getting-started/

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按照命令行提示执行npm uninstall -g create-react-app进行全局卸载后，再次执行安装依然报错，经过查询，发现需要清理一下npx的缓存，即执行全局卸载命令后，再运行一下命令

npx clear-npx-cache
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这时如果命令行提示

Need to install the following packages:
  clear-npx-cache
Ok to proceed? (y) 
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输入y继续安装clear-npx-cache的package包即可

然后再执行react的安装命令npx create-react-app 你的项目名称 即可顺利安装