react-native run-ios packager build error - AwesomeProject quick start - react-native

Question

The problem
Open react native issue here
I have researched this error extensively (~ 2days dev time) but somehow still no resolution - I have run previous React Native setups fine and thought this might resolve as a final step (see the end of issue).
In short, when I run react-native run-ios from example "AwesomeProject" directory I get the below error in the React Packager launchPackager.command window.
~/AwesomeProject2/node_modules/react-native/packager ~
/Users/alexanderhandy/AwesomeProject2/node_modules/react-native/local-cli/cli.js:74
const setupEnvScript = /^win/.test(process.platform)
SyntaxError: Use of const in strict mode.
at exports.runInThisContext (vm.js:73:16)
at Module._compile (module.js:443:25)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
at startup (node.js:129:16)
at node.js:814:3
My setup
Macbook Pro 2012 - OS X 10.11 El Capitan
Xcode (v7.2.1)
Node (v5.7.0) and NVM (0.31.0)
React Native (v0.20.0)
Steps
Upgraded laptop to El Capitan (as per version above) - hadn't used much for last 6 months so was coming back to run some setup
Attempted react native setup and got an error running homebrew when tried to install. Found some unexpected changes to many files when ran git status -- so went into the relevant usr/local homebrew directory and ran git fetch; git reset --hard origin/master
Updated Xcode to over v7 (as per version above)
Installed nvm and latest node to address error warning from Node - note: for some reason have to run . ~/.nvm/nvm.sh in terminal to get nvm working, when I don't v5.7.0 becomes v0.12.4. I have double-checked node is v5.7.0 when error runs
Finally got through to actually building an app when ran react-native init AwesomeProject which completed but hanged for like 10 mins
Ran react-native run-ios and got error and tried to add source ~/.bash_profile to node_modules/react-native/packager/react-native-xcode.sh as suggested here
Considered going back to Ionic so went through their setup again and that wouldn't work either
Tried not to throw my laptop out the window

Answer 1

I had the same problem when creating my project from react-native init command. What I did to get a successful build was do npm install babel and then finally do react-native run-ios. Hope this helps.

Answer 2

this is the issue of Community CLI
kindly add it properly else remove it from your package.json and run your project from xcode it would help
(https://github.com/react-native-community/cli)
when you start a react native project with react-native init MyProject it doesn't add few things globally so we use npx react-native init MyProject.