运行react-native start时出错

Question

跑步时我有一个奇怪的错误react-native start:

 ERROR  watch /home/augustin/Workspace/MyProject ENOSPC
{"code":"ENOSPC","errno":"ENOSPC","syscall":"watch /home/augustin/Workspace/MyProject","filename":"/home/augustin/Workspace/MyProject"}
Error: watch /home/augustin/Workspace/MyProject ENOSPC
    at exports._errnoException (util.js:874:11)
    at FSWatcher.start (fs.js:1234:19)
    at Object.fs.watch (fs.js:1262:11)
    at NodeWatcher.watchdir (/home/augustin/Workspace/MyProject/node_modules/react-native/node_modules/sane/src/node_watcher.js:144:20)
    at new NodeWatcher (/home/augustin/Workspace/MyProject/node_modules/react-native/node_modules/sane/src/node_watcher.js:45:8)
    at /home/augustin/Workspace/MyProject/node_modules/react-native/packager/react-packager/src/FileWatcher/index.js:95:21
    at tryCallOne (/home/augustin/Workspace/MyProject/node_modules/react-native/node_modules/promise/lib/core.js:37:12)
    at /home/augustin/Workspace/MyProject/node_modules/react-native/node_modules/promise/lib/core.js:103:15
    at flush (/home/augustin/Workspace/MyProject/node_modules/react-native/node_modules/promise/node_modules/asap/raw.js:50:29)
    at doNTCallback0 (node.js:419:9)

See http://facebook.github.io/react-native/docs/troubleshooting.html
for common problems and solutions.
/home/augustin/Workspace/MyProject/node_modules/react-native/private-cli/src/server/server.js:91
    if (error.code === 'EADDRINUSE') {
             ^

TypeError: Cannot read property 'code' of undefined
    at process.<anonymous> (/home/augustin/Workspace/MyProject/node_modules/react-native/private-cli/src/server/server.js:105:14)
    at emitOne (events.js:77:13)
    at process.emit (events.js:169:7)
    at process._fatalException (node.js:223:26)

如果我看一下/home/augustin/Workspace/MyProject/node_modules/react-native/private-cli/src/server/server.js,显然err是未定义的:

  process.on('uncaughtException', error => {
    if (error.code === 'EADDRINUSE') {
      console.log(
        chalk.bgRed.bold(' ERROR '),
        chalk.red('Packager can\'t listen on port', chalk.bold(args.port))
      );
    ...
  }

怎么会这样？使用:

? node --version
v4.2.2

Answer 1

我通过安装看门人解决了这个问题.

引用此页面:

我们建议安装watchman,否则你可能会看到节点文件看bug.

这是任何建议,这是一个依赖!

Answer 2

显示此错误是因为您的守望者已观看太多文件并超过其限制.因此有两种方法可以解决它使用守望者并取消其限制或不使用守望者,您可以通过在终端上使用以下命令增加inotify手表的数量来解决它.

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p