尝试创建React应用时出现纱线错误

Question

我尝试使用以下命令创建一个React应用程序：create-react-app eth-todo-list-react这将产生以下错误：'yarnpkg' is not recognized as an internal or external command,operable program or batch file.Installing packages. This might take a couple of minutes.Installing react, react-dom, and react-scripts...'yarnpkg' is not recognized as an internal or external command,operable program or batch file.events.js:167      throw er; // Unhandled 'error' event      ^Error: spawn yarnpkg ENOENT    at notFoundError (C:\Users\Aristophanes\node_modules\create-react-app\node_modules\cross-spawn\lib\enoent.js:6:26)    at verifyENOENT (C:\Users\Aristophanes\node_modules\create-react-app\node_modules\cross-spawn\lib\enoent.js:40:16)    at ChildProcess.cp.emit (C:\Users\Aristophanes\node_modules\create-react-app\node_modules\cross-spawn\lib\enoent.js:27:25)    at Process.ChildProcess._handle.onexit (internal/child_process.js:246:12)Emitted 'error' event at:    at ChildProcess.cp.emit (C:\Users\Aristophanes\node_modules\create-react-app\node_modules\cross-spawn\lib\enoent.js:30:37)    at Process.ChildProcess._handle.onexit (internal/child_process.js:246:12)它应该说“成功”并初始化一个git仓库。但是我却得到了上面的错误。我尝试了各种方法的故障排除，包括更改路径和全局安装yarn，但是当我这样做之后，再次尝试创建react app时，出现此错误：The directory eth-todo-list-react contains files that could conflict:  package.json  yarn.lockEither try using a new directory name, or remove the files listed above.如果我删除此文件并尝试再次创建react应用，则会再次遇到第一个错误。

Answer 1

尝试使用npx命令，

npx create-react-app my-project

如果您使用npx，则不需要像那样全局安装软件包create-react-app。

全部告诉node -v和npm -v

Answer 2

通过create-react-app --version在控制台中输入来获取您的create-react-app的版本。这使用2.1.5版为我成功构建。您可能需要更新您的create-react-app。 npm uninstall -g create-react-app npm create-react-app eth-todo-list-react 应该使用最新版本的create-react-app。