react-native: watchman连接已关闭

Question

React-native菜鸟问题:我不能让它在osx上工作。在启动react-native run-ios testapp时，我的应用程序构建没有错误，并启动iphone模拟器，在新的终端'React Packager‘中，我得到以下错误：

 ERROR  The watchman connection was closed
Error: The watchman connection was closed
    at Client.cancelCommands (/Users/elgerm/react/test3/node_modules/react-native/node_modules/sane/node_modules/fb-watchman/index.js:52:15)
    at Socket.<anonymous> (/Users/elgerm/react/test3/node_modules/react-native/node_modules/sane/node_modules/fb-watchman/index.js:128:12)
    at emitNone (events.js:72:20)
    at Socket.emit (events.js:166:7)
    at endReadableNT (_stream_readable.js:921:12)
    at nextTickCallbackWith2Args (node.js:442:9)
    at process._tickCallback (node.js:356:17)

在模拟器中添加了应用程序'testapp‘，但一旦启动它，它就会立即崩溃/停止。

我在故障排除指南中找不到任何关于这方面的内容。有人有什么想法吗？

Answer 1

您需要再次启动react打包程序。

方法是: 1)在你的终端上运行npm start 2)在你的设备或模拟器上找到一个'reloadJS‘按钮并点击它