React native error - react-native-xcode.sh:line 45：react-native：command not found命令/ bin / sh失败，退出代码127

I get this error when trying to build any (new or old) project. My node is on version 4.2.1 and react-native is on version 0.1.7. I've looked at other people with the same problem so I've updated react-native to the latest version however I still cannot build any project through xcode.I get this error when trying to build any (new