Class Not Found #56

  var SaveImage = function(element, success, error){
      var canvas = document.getElementById(element);
      var imageDataUrl = canvas.toDataURL('image/jpeg', 1.0);
      var imageData = imageDataUrl.replace(/data:image\/png;base64,/,'');
      cordova.exec(success, error, 'Canvas2ImagePlugin', 'saveImageDataToLibrary', [imageData]);
      $scope.return = 'Saved';
  };

  var success = function(msg){
      $scope.return = msg;  
  };

  var error = function(err){
      $scope.return = err;
  };

  $scope.save = function(){
      SaveImage('pwCanvasMain', success, error);
  };