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to Share my Life Events

root does not have permission to access the dev dir

sudo npm install --unsafe-perm --verbose -g sails

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React Native Admob plugin error






Javascript error..Invariant Violation: View config not found for name RNGADBannerView
This error is located at:    in RNGADBannerView (at RNAdMobBanner.js:51)    in AdMobBanner (at App.js:33)    in RCTView (at View.js:60)    in View (at App.js:23)    in codetrAdmob (at registerRootComponent.js:35)    in RootErrorBoundary (at registerRootComponent.js:34)    in ExpoRootComponent (at renderApplication.js:33)    in RCTView (at View.js:60)    in View (at AppContainer.js:102)    in RCTView (at View.js:60)    in View (at AppContainer.js:122)    in AppContainer (at renderApplication.js:32)

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Try your react native apps with expo


Your app is now running at URL: exp://


View your app with live reloading:


  Android device:

    -> Point the Expo app to the QR code above.

       (You'll find the QR scanner on the Projects tab of the app.)

  iOS device:

    -> Press s to email/text the app URL to your phone.


    -> Press a (Android) or i (iOS) to start an emulator.


Your phone will need to be on the same local network as this computer.

For links to install the Expo app, please visit


Logs from serving your app will appear here. Press Ctrl+C at any time to stop.

or to run on device type

react-native run-iosreact-native run-ios

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Upgrade node.js and npm


If you got the following error..

mERR! Failed at the mytest@0.1.0 start script 'react-native-scripts start'.

npmERR! Make sure you have the latest version of node.js and npm installed.

npmERR! If you do, this is most likely a problem with the mytest package,

npmERR! not with npm itself.

NPM error while start the react native apps.

brew update
brew upgrade node
npm install -g npm

Or download the latest version here

You can also nstall watchman or type in the following code:
sudo sysctl -w kern.maxfiles=5242880sudo sysctl -w kern.maxfilesperproc=524288

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Create first react native app from command line



1. npm install -g create-react-native-app

2. create-react-native-app my-app

3. cd my-app/

4. npm start

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Updating sites with new tutorials


Hi guys, I am going to share you with my Oracle PL/SQL tutorial at my new sites. Its still under construction. I hope you like the contents and give me the feedback so that we can share knowledge together.



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