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出处

表现

//启动后给的信息，watchman 起不来Looking for JS files in   /Users/tomlucky/otherCode/RN/AwesomeProject Metro Bundler ready.Loading dependency graph... BUNDLE  [android, dev] ./index.js ░░░░░░░░░░░░░░░░ 0.0% (0/1)2018-01-09T18:09:37,917: [cli] unable to talk to your watchman on /usr/local/var/run/watchman/tomlucky-state/sock! (No such file or directory)Watchman:  watchman --no-pretty get-sockname returned with exit code=1, signal=null, stderr= 2018-01-09T18:09:37,917: [cli] unable to talk to your watchman on /usr/local/var/run/watchman/tomlucky-state/sock! (No such file or directory)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 --no-pretty get-sockname returned with exit code=1, signal=null, stderr= 2018-01-09T18:09:37,917: [cli] unable to talk to your watchman on /usr/local/var/run/watchman/tomlucky-state/sock! (No such file or directory)2018-01-09T18:12:02,864: [cli] unable to talk to your watchman on /usr/local/var/run/watchman/tomlucky-state/sock! (No such file or directory)Watchman:  watchman --no-pretty get-sockname returned with exit code=1, signal=null, stderr= 2018-01-09T18:12:02,864: [cli] unable to talk to your watchman on /usr/local/var/run/watchman/tomlucky-state/sock! (No such file or directory) ERROR  watchman --no-pretty get-sockname returned with exit code=1, signal=null, stderr= 2018-01-09T18:12:02,864: [cli] unable to talk to your watchman on /usr/local/var/run/watchman/tomlucky-state/sock! (No such file or directory)Loading dependency graph... BUNDLE  [android, dev] ./index.js ░░░░░░░░░░░░░░░░ 0.0% (0/1)Process terminated. Press 
   
     to close the window
   

解决方式

删除 watchman (之前用 brew装的):

$ brew install rmtree //我的这句报错，用的                       //brew tap beeftornado/rmtree$ brew rmtree watchman$ sudo rm -rf /usr/local/var/run/watchman

Manually install Watchman v4.7.0 (credits to David):

$ git clone https://github.com/facebook/watchman.git$ cd watchman$ git checkout v4.7.0  //我用的时候，master就是4.7，所以没必要切branch$ ./autogen.sh$ ./configure$ make$ sudo make install

Chmod your user’s watchman state directory:

//我这个没用，直接就可以跑起来了。$ chmod 0700 /usr/local/var/run/watchman/
   
    -state
   

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