问题描述
尝试运行 react-native run-ios 或从 xcode 构建 RN 项目，metro bundler 一启动，终端中就会出现此错误:
Trying to run react-native run-ios or build RN project from xcode, as soon as metro bundler starts, this error appears in the terminal:
Loading dependency graph...jest-haste-map: Watchman crawl failed. Retrying once with node crawler.
Usually this happens when watchman isn't running. Create an empty `.watchmanconfig` file in your project's root folder or initialize a git or hg repository in your project.
Error: Watchman error: resolve_projpath: path `/Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA`: open: /Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA: Operation not permitted. Make sure watchman is running for this project. See https://facebook.github.io/watchman/docs/troubleshooting.html.
events.js:183
throw er; // Unhandled 'error' event
^
Error: resolve_projpath: path `/Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA`: open: /Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA: Operation not permitted
at BunserBuf.<anonymous> (/Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA/node_modules/fb-watchman/index.js:95:23)
at emitOne (events.js:116:13)
at BunserBuf.emit (events.js:211:7)
at BunserBuf.process (/Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA/node_modules/bser/index.js:292:10)
at /Users/vorousjames/Desktop/Development/TicTacWHOA/app/TicTacWHOA/node_modules/bser/index.js:247:12
at _combinedTickCallback (internal/process/next_tick.js:131:7)
at process._tickCallback (internal/process/next_tick.js:180:9)
这在 Catalina 更新之前从未发生过.从一开始，我的项目根目录中就有一个空的 watchman 配置文件.在第一次启动后更新时，终端中有一个弹出窗口，说一些关于权限的内容，但我不记得了.我的终端在 Visual Studio 代码中也有一条通知，说默认 shell 更改为 zsh"运行 chsh -s/bin/zsh 进行更改，所以我做了.
This never happened before the Catalina update. I've had an empty watchman config file in the root of my project since the beginning. On first boot post-update, there was a popup in terminal saying something about permissions but i dont remember exactly. there's also a notice in my terminal in visual studio code saying "the default shell changed to zsh" run chsh -s /bin/zsh to change, so i did.
我试过了:
watchman watch-del-all
watchman server-shutdown
从系统首选项->隐私选项卡中添加对终端的全盘访问
adding full disk access to terminal from within system preferences->privacy tab
npm uninstall watchman &npm uninstall -g watchman
推荐答案
更新到 Catalina 后，我遇到了同样的问题.Wez Furlong 的回答对我有用，但我必须为 watchman 提供完整的磁盘访问权限才能运行 watchman watch-project 命令而不会出现不允许操作"错误.作为之前故障排除的一部分，我还提供了对 Xcode 和终端的完整磁盘访问(不确定这是否也有助于修复).
I had the same issue after updating to Catalina. Wez Furlong's answer worked for me, but I had to provide full disk access to watchman in order to run watchman watch-project command without getting "Operation not permitted" error. As part of prior troubleshooting, I also had provided full disk access to Xcode and Terminal (not sure if this also contributed to the fix).
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