Directive inside directive in AngularJS?

Question

I'm trying to create a Directive that contains another directive (defined in the AngularJS UI), and it doesn't seem to work.

Here's my html:

<div class="col-md-12" ng-show="continent == '2'">
       <my-rating></my-rating>
</div>

And the directive:

.directive('myRating', function() {

return{
    restrict: 'E',
    template: '<div class="row question">{{questions.3A.name}}</div> \
              <div class="row rating" ng-controller="RatingDemoCtrl"> \
                <rating value="rate" max="max" readonly="isReadonly" state-on="\'glyphicon-star rated\'" state-off="\'glyphicon-star\'"></rating> \
                  <div class="col-md-12"> \
                    <button class="btn btn-sm btn-danger form-control" ng-click="rate = 0" ng-disabled="isReadonly">Clear</button> \
                  </div>  \
              </div>',
    replace: true,
    scope: {
        text: '@'
    }
};
})

I've copied such directive from a working one, and as soon as I delete code and leave only the div class="col-md-12", then it works. Otherwise, Angular crashes.

What am I missing?

EDIT: I've added a Plunker. The problematic directive is in line 34-42 in script.js), otherwise everything works fine.

EDIT 2: This is the console Error:

Error: [$compile:tplrt] http://errors.angularjs.org/1.2.13/$compile/tplrt?p0=myRating&p1=
at Error (native)
at file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:6:450
at Wa (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:51:416)
at L (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:43:62)
at L (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:43:184)
at L (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:43:184)
at L (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:43:184)
at L (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:43:184)
at Y (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:41:360)
at Wa (file:///C:/Users/Zuh/Desktop/ANGULARJS/js/lib/angular.min.js:51:164) angular.min.js:85

Answer 1

From your plunker:

Error: [$compile:tplrt] Template for directive 'myRating' must have exactly one root element.