npm开始不工作create-react-native-app

Question

npm版本是4.6.1也参考github link

我创建了一个普通的hello world应用程序，并尝试

create-react-native-app HelloWorldVatsal

创建了应用程序，加载了所有模块等，并在终端上给出了成功消息

在那之后，如下所示

cd HelloWorldVatsal
npm start

HelloWorldVatsal@0.1.0 start /home/mvix-vatsal/HelloWorldVatsal
react-native-scripts start

14:52:58: Unable to start server
  See https://git.io/v5vcn for more information, either install watchman or run the following snippet:
    sudo sysctl -w fs.inotify.max_user_instances=1024
    sudo sysctl -w fs.inotify.max_user_watches=12288
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! HelloWorldVatsal@0.1.0 start: `react-native-scripts start`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the HelloWorldVatsal@0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/mvix-vatsal/.npm/_logs/2018-02-19T09_22_58_504Z-debug.log

Answer 1

正如您从下面显示的错误消息行中看到的；

See https://git.io/v5vcn for more information, either install watchman or run the following snippet:
    sudo sysctl -w fs.inotify.max_user_instances=1024
    sudo sysctl -w fs.inotify.max_user_watches=12288

您需要安装watchman或运行错误消息中显示的代码片段。

Answer 2

安装watchman对我来说很有效:D

我的系统(mac) --> OSX 10.12.3

brew update

brew install watchman

Answer 3

在mac上运行以下命令对我很有效：

sudo sysctl -w kern.maxfiles=5242880

sudo sysctl -w kern.maxfilesperproc=524288