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从 npm 安装 create-react-app package 时遇到错误

[英]Facing an Error when installing create-react-app package from npm

原文 2022-01-15 18:33:26 7 2 javascript/ reactjs/ npm/ create-react-app

I'm trying to install React on my Computer.我正在尝试在我的计算机上安装 React。 I'm a beginner and installing it for the first time.我是初学者，第一次安装。 However, when I used create-react-app react-app to start a project, it showed the following:但是，当我使用create-react-app react-app启动项目时，它显示如下：

But the app is working fine, I launched the server through npm start and it works, so should I ignore these errors or not?但是该应用程序运行良好，我通过npm start服务器并且它运行正常，所以我应该忽略这些错误吗？

2 个解决方案

the first warning you get ( deprecated ) means that one of the packages you are using (in this case - source-map-resolve ) was deprecated (ie is not maintained).您收到的第一个警告（ deprecated ）意味着您正在使用的一个包（在本例中source-map-resolve ）已被弃用（即未维护）。 you can go to the package GitHub repo to find a way to resolve it.您可以 go 到 package GitHub repo找到解决方法。

the second error you get (cannot read properties of undefined) tells you that there is a difference between versions of global packages.您得到的第二个错误（无法读取未定义的属性）告诉您全局包的版本之间存在差异。 sometimes restarting your wifi helps it, or updating NPM/windows/node/all your packages有时重启你的 wifi 会有所帮助，或者更新 NPM/windows/node/你所有的包

run npm audit fix and see if that helps.运行npm audit fix ，看看是否有帮助。 If not then i would just continue working on your project.如果没有，那么我将继续从事您的项目。 Since you're a beginner you will learn more about NPM as you work.由于您是初学者，您将在工作时了解有关 NPM 的更多信息。 Npm is notorious for installing a ton of dependencies that are deprecated. Npm 因安装大量已弃用的依赖项而臭名昭著。