Rails reduces js, so you need to use a different syntax:
MyApp = angular.module( "MyApp", ["ui.router", "ngCsv", "ui.bootstrap", "ngResource", "templates", "angularFileUpload", "ngSanitize", "ngCookies", "textAngular", "djds4rce.angular-socialshare"] ); MyApp.run(['$FB', function($FB){ $FB.init('1438666983087556'); }]);
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