package.json信息如下：
"react": "^15.1.0",
"react-native": "^0.26.2"
运行后报错如下：
Unable to resolve module ReactDefaultPerf from /Users/Eric/Projects/HRONE/node_modules/react-native/Libraries/react-native/react-native.js: Unable to find this module in its module map or any of the node_modules directories under /Users/node_modules/ReactDefaultPerf and its parent directories
This might be related to https://github.com/facebook/react-native/issues/4968
To resolve try the following:
1. Clear watchman watches: `watchman watch-del-all`.
2. Delete the `node_modules` folder: `rm -rf node_modules && npm install`.
3. Reset packager cache: `rm -fr $TMPDIR/react-*` or `npm start -- --reset-cache`.
解决办法：
"react": "15.0.2",
"react-native": "^0.26.2"