How to resolve for angular ui-route - angularjs

Question

Here is my angularjs code. I have created different routes but i am unable to resolve my contract.dashboard route. If i remove the route object, it works fine but when i tried to reslove something from my service, it dose not work.
(function() {
'use strict';
angular
.module('app.contracts')
.run(appRun);
var _base = {
// Contract Base Contractor
contract: {
controllerAs: 'c',
controller: ['$scope', '$state', 'ContractModel', function($scope, $state, ContractModel){
'ngInject';
var that = this;
$scope.$watch(function(){ return $state.current.data.mode; }, function() { that.mode = $state.current.data.mode; });
that.contract = new ContractModel();
}]
}
};
/* #ngInject */
function appRun(routerHelper) {
routerHelper.configureStates(getStates());
}
function getStates() {
return [
{
state: 'contract',
config: angular.extend({
abstract: true,
template: '<contract-manager><ui-view/></<contract-manager>',
url: '/contract'
}, _base.contract)
},
{
state: 'contract.new',
config: angular.extend({
url: '/new',
template: '<contract-editor mode="c.mode" contract="c.contract"></<contract-editor>',
title: 'Contract Editor',
data: {
mode: 'new'
}
}, _base.contract)
},
{
state: 'contract.dashboard',
config: angular.extend({
url: '',
template: '<contract-dashboard></contract-dashboard>',
title: 'Contract Dashboard',
data: {
mode:'dashboard'
},
resolve: {
stubs: function(stubs){
return stubs.service.registerGetCustomers();
}
}
}, _base.contract)
}
];
}
})();