react-native运行样例的时候出错

Question

先npm install安装好相关包

之后无论是从Xcode中启动还是直接npm install都会爆出一个相同的bug:

Error watching file for changes: EMFILE
{"code":"EMFILE","errno":"EMFILE","syscall":"Error watching file for changes:","filename":null}
Error: Error watching file for changes: EMFILE
    at exports._errnoException (util.js:1008:11)
    at FSEvent.FSWatcher._handle.onchange (fs.js:1406:11)

这个有没有经验人士知道怎么回事
(系统为OS X10.12)

Answer 1

需要安装watchman

git clone https://github.com/facebook/w...
cd watchman
./autogen.sh
./configure
make
sudo make install

Answer 2

升级最新MacOS系统后，需要重新安装一次brew install watchman