Error: Trying to access the '$getIndex' property of an undefined value is not possible

I'm struggling with fixing this error. Can anyone offer some guidance?

TypeError: Cannot read property '$getIndex' of undefined
  at Scope.<anonymous> (angularfire.min.js:1)
  at Parser.filter.fnInvoke (angular.js:10101)
  at OPERATORS.| (angular.js:9616)
  at Parser.binaryFn.extend.constant (angular.js:10046)
  at OPERATORS.| (angular.js:9616)
  at Parser.binaryFn.extend.constant (angular.js:10046)
  at OPERATORS.| (angular.js:9616)
  at Parser.binaryFn.extend.constant (angular.js:10046)
  at Object.$watchCollectionWatch (angular.js:11726)
  at Scope.$get.Scope.$digest (angular.js:11890)
javascriptangularjs

Answer №1

Patiently wait for the information to be loaded into your system. You can implement something similar to this example:

$scope.data.$on('fetched', function() {
  console.log($scope.data.$retrieve());
});

Be sure to listen for the fetched event before utilizing the $retrieve() method.

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