Angular ng-repeat Error "Duplicates in a repeater are not allowed."

I am defining a custom filter like so: <div class="idea item" ng-repeat="item in items" isoatom> <div class="section comment clearfix" ng-repeat="comment in item.comments | range:1:2"> .... </div> </div> As you can see the ng-repeat where the filter is being used is nested within another ng-repeat The filter is defined like this: myapp.filter('range', function() { return function(input, min, max)

[nooby_noob]

これハマった。 trackオプション付けないとng-repeat中に同じ値の要素を追加した時にエラー出る。