Some of the icons not working after updating to v1.0.1 version

I migrated my app ionic version from 1.0.0-beta14 to v1.0.1 recently and some of the icons are not working. What could be the issue? Below is one example, but many icons are not working.

  <ion-nav-buttons side="right">
    <a class="button button-icon icon ion-ios7-arrow-thin-left" ng-click="$ionicGoBack()"></a>
</ion-nav-buttons>

A lot of icons have new names.

Please take a look at the official documentation and make appropriate changes.

For example ion-ios7-arrow-thin-left is now ion-ios-arrow-thin-left

I tried that some time ago and could not help, but still arrow is not shown.

<ion-nav-buttons side="right">
    <a class="button button-icon icon ion-ios-arrow-thin-left" ng-click="$ionicGoBack()"></a>
</ion-nav-buttons>

Have you checked that this icon really do exist?

Have you properly updated your new icons? http://stackoverflow.com/questions/27766015/some-ionicons-not-showing

Its is resolved now, my setup was not proper. I corrected ionic update steps and its working fine now except one issue.

Thank you for your support.