Al usar el acordeón de arranque Angular-UI en IE8, las pestañas no se expanden. Aquí está el error que estoy recibiendo usando F12 de IE 8

 Error: Unexpected call to method or property access.undefined 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 
 Error: No controller: accordion<div class="accordion-group ng-scope" ng-repeat="c in categories" heading="{{c.Name}}"> 

¿Alguien ha tenido un problema similar y ha podido resolverlo?