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开玩笑--watch（npm t — --watch）抛出错误

[英]jest --watch (npm t — --watch) throwing errors

原文 2017-06-16 18:46:04 9 2 node.js/ reactjs/ jestjs/ watchman

node[1265] (FSEvents.framework) FSEventStreamStart: register_with_server: ERROR: f2d_register_rpc() => (null) (-22) 节点[1265]（FSEvents.framework）FSEventStreamStart：register_with_server：错误：f2d_register_rpc（）=>（空）（-22）

This happens when running npm t -- --watch . 运行npm t -- --watch时会发生这种情况。 On my system node v7.4.0 it works fine. 在我的系统节点v7.4.0上，它可以正常工作。 On my fellow coworker (node v7.9) it fails. 在我的同事（节点v7.9）上，它失败了。

This question here asks the exact problem: 这里的问题问的是确切的问题：

Testing with Jest failed with Error: Error watching file for changes: EMFILE 使用Jest进行测试失败，并显示错误：监视文件是否有错误：EMFILE

However the fix "install watchman" didn't work. 但是，修复“安装守望者”无效。

We did brew install watchman then brew postinstall watchman 我们做了brew install watchman然后做了brew postinstall watchman

Then when trying to run npm t -- --watch again we get a new error: 然后，当尝试运行npm t -- --watch时，我们得到一个新错误：

/Users/user/Library/LaunchAgents/com.github.facebook.watchman.plist: Operation not permitted /Users/user/Library/LaunchAgents/com.github.facebook.watchman.plist：不允许操作

Anyone else running into a problem with jest watch ? 还有其他人在jest watch的问题吗？

The regular npm t will work. 常规的npm t将起作用。

2 个解决方案

After installing watchman , you can give it a full permission to the launch agents by sudo chown -R $(whoami):staff ~/Library/LaunchAgents . 安装watchman ，您可以通过sudo chown -R $(whoami):staff ~/Library/LaunchAgents授予启动代理完全权限。
It will resolve the permission issue. 它将解决权限问题。