react-native - 反应原生 watchmanResponse 无法解析 root

Question

使用 0.20.0 版本构建我的 react-native 项目时出现错误：

Looking for JS files in
   /Users/rockyl/WorkSpaces/react-native/TinySNS 

[13:55:06] <START> Building Dependency Graph
[13:55:06] <START> Crawling File System
[13:55:06] <START> Loading bundles layout
[13:55:06] <END>   Loading bundles layout (1ms)
[Hot Module Replacement] Server listening on /hot

React packager ready.

 ERROR  unable to resolve root /Users/rockyl/WorkSpaces/react-native/TinySNS: failed to opendir(/Users/rockyl/WorkSpaces/react-native/TinySNS): No such file or directory
{"watchmanResponse":{"version":"4.4.0","error":"unable to resolve root /Users/rockyl/WorkSpaces/react-native/TinySNS: failed to opendir(/Users/rockyl/WorkSpaces/react-native/TinySNS): No such file or directory"}}
Error: unable to resolve root /Users/rockyl/WorkSpaces/react-native/TinySNS: failed to opendir(/Users/rockyl/WorkSpaces/react-native/TinySNS): No such file or directory
    at BunserBuf.<anonymous> (/Users/rockyl/WorkSpaces/react-native/TinySNS/node_modules/react-native/node_modules/sane/node_modules/fb-watchman/index.js:95:23)
    at emitOne (events.js:77:13)
    at BunserBuf.emit (events.js:169:7)
    at BunserBuf.process (/Users/rockyl/WorkSpaces/react-native/TinySNS/node_modules/react-native/node_modules/bser/index.js:289:10)
    at /Users/rockyl/WorkSpaces/react-native/TinySNS/node_modules/react-native/node_modules/bser/index.js:244:12
    at doNTCallback0 (node.js:419:9)
    at process._tickCallback (node.js:348:13)

See http://facebook.github.io/react-native/docs/troubleshooting.html
for common problems and solutions.

这是日志： 这是实时日志：

但根路径确实存在。

Answer 1

感谢您发布这些日志；这里发生的事情WorkSpaces是正在监视的路径中目录的大小写问题。这有一些复杂的背景，导致守望者需要知道文件名的确切大小写，以便我们可以报告 case-change-only-renames。

TL;DR 是您应该要求 React Native 使用Workspaces作为目录名称来观察路径，或者重命名目录以使其实际存在WorkSpaces（换句话说，确保您要求的路径与文件系统）。

这里有几个守望者错误，我将同时修复：

1. 我们应该在观察的早期阶段使用我们的严格标准规范化这条路径（应该让这个用例“正常工作”）
2. 当发生这种不匹配时，我们应该用这种解释来揭示这个错误

Answer 2

简而言之：只需将项目所在的包含文件夹重命名为workspaces（全部小写），此处为示例：