reactjs - 试图 npm 启动一个反应应用程序，得到这个错误。该应用程序以前工作过

Question

我尝试过更改路径，但不确定我是否正确执行。

```events.js:292 抛出错误；// 未处理的“错误”事件 ^

Error: spawn cmd ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
    at onErrorNT (internal/child_process.js:469:16)
    at processTicksAndRejections (internal/process/task_queues.js:84:21)
Emitted 'error' event on ChildProcess instance at:
    at Process.ChildProcess._handle.onexit (internal/child_process.js:273:12)
    at onErrorNT (internal/child_process.js:469:16)
    at processTicksAndRejections (internal/process/task_queues.js:84:21) {
  errno: 'ENOENT',
  code: 'ENOENT',
  syscall: 'spawn cmd',
  path: 'cmd',
  spawnargs: [ '/s', '/c', 'start', '""', '/b', '"http://localhost:3000/"' ]
}```

Answer 1

您可以尝试以下方法来解决此问题：

$ npm cache clean --force
$ rm -rf node_modules package-lock.json
$ npm install && npm start