运行本机初始项目时，watchman.plist 权限被拒绝

Question

我开始使用 react-native 并按照网站上的教程进行操作，但是在运行示例项目时，它在终端上返回了一些错误消息：

Looking for JS files in
   /Users/username/Desktop/nativeTest/BookSearch 

[06:03:00] <START> Building Dependency Graph
[06:03:00] <START> Crawling File System
[06:03:00] <START> Loading bundles layout
[06:03:00] <END>   Loading bundles layout (0ms)

React packager ready.

2015-12-13T06:03:01,281: [cli] Failed to open /Users/username/Library/LaunchAgents/com.github.facebook.watchman.plist for write: Permission denied

2015-12-13T06:03:01,281: [cli] Failed to open /Users/username/Library/LaunchAgents/com.github.facebook.watchman.plist for write: Permission denied

Watchman:  watchman--no-pretty get-sockname returned with exit code null 2015-12-13T06:03:01,281: [cli] Failed to open /Users/username/Library/LaunchAgents/com.github.facebook.watchman.plist for write: Permission denied

 ERROR  watchman--no-pretty get-sockname returned with exit code null 2015-12-13T06:03:01,281: [cli] Failed to open /Users/username/Library/LaunchAgents/com.github.facebook.watchman.plist for write: Permission denied

Error: watchman--no-pretty get-sockname returned with exit code null 2015-12-13T06:03:01,281: [cli] Failed to open /Users/username/Library/LaunchAgents/com.github.facebook.watchman.plist for write: Permission denied

    at ChildProcess.<anonymous> (/Users/username/Desktop/nativeTest/BookSearch/node_modules/fb-watchman/index.js:194:18)
    at emitTwo (events.js:88:13)
    at ChildProcess.emit (events.js:173:7)
    at maybeClose (internal/child_process.js:819:16)
    at Socket.<anonymous> (internal/child_process.js:320:11)
    at emitOne (events.js:78:13)
    at Socket.emit (events.js:170:7)
    at Pipe._onclose (net.js:470:12)

See http://facebook.github.io/react-native/docs/troubleshooting.html
for common problems and solutions.
~
Process terminated. Press <enter> to close the window

我尝试 chmod com.github.facebook.watchman.plist 但实际上那里没有这样的文件。也许我应该更改文件的路径？

我尝试过的其他事情：

1. 酿造更新
2. brew 升级守望者
3. brew uninstall watchman && brew install --HEAD watchman
4. 重启并重新初始化项目

包版本（如果需要）：

1. 节点：v5.2.0
2. 守望者：v4.2.0

Answer 1

当前用户没有文件夹/Users/[username]/Library/LaunchAgents的权限。

使用以下命令解决此问题：

$ sudo chown $(whoami) /Users/$(whoami)/Library/LaunchAgents

Answer 2

确保/Users/username/Library 和/Users/username/Library/LaunchAgents 归username 所有并拥有正确的权限；这是我的样子：

$ ls -ld ~/Library
drwx------+ 57 wez  users  1938 Nov  6 07:49 /Users/wez/Library
$ ls -ld ~/Library/LaunchAgents
drwxr-xr-x  3 wez  users  102 Dec 11 16:13 /Users/wez/Library/LaunchAgents
$ ls -l ~/Library/LaunchAgents/com.github.facebook.watchman.plist
-rw-r--r--  1 wez  users  1545 Dec 11 16:13 /Users/wez/Library/LaunchAgents/com.github.facebook.watchman.plist

还要确保您没有以 root 身份或通过 sudo 运行 watchman。