1. 找不到 libsqlite3.dylib
http://stackoverflow.com/questions/31420166/libsqlite3-dylib-and-libz-dylib-missing-in-xcode-7-how-do-i-use-parse
最后参考 step 2: open your terminal (for mac) (搜索可见方案)解决
cd /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/lib
sudo ln -s /usr/lib/libsqlite3.dylib libsqlite3.dylib
sudo ln -s /usr/lib/libz.dylib libz.dylib
2. 升级xcode 7.0 以后访问网络失败