Failed: Cannot read property '$' of undefined
TypeError: Cannot read property '$' of undefined
    at new FileUploadPanel (C:\Users\VR\WebstormProjects\end-to-end-tests\node_modules\ui-page-objects\file-upload\file-upload.js:51:32)
    at Object.<anonymous> (C:\Users\VR\WebstormProjects\end-to-end-tests\acceptance-tests\upload-object\upload-object.spec.js:33:26)
    at C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasminewd2\index.js:112:25
    at new ManagedPromise (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:1067:7)
    at ControlFlow.promise (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2396:12)
    at schedulerExecute (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasminewd2\index.js:95:18)
    at TaskQueue.execute_ (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2970:14)
    at TaskQueue.executeNext_ (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2953:27)
    at asyncRun (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2860:25)
    at C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:676:7
From: Task: Run it("should allow uploading of documents") in control flow
    at Object.<anonymous> (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasminewd2\index.js:94:19)
    at attemptAsync (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3945:24)
    at QueueRunner.run (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3884:9)
    at QueueRunner.execute (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3872:10)
    at Spec.queueRunnerFactory (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:816:35)
    at Spec.execute (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:473:10)
    at Object.fn (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:4975:37)
    at attemptAsync (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3945:24)
    at QueueRunner.run (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3884:9)
    at C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3924:18
From asynchronous test:
Error
    at Suite.<anonymous> (C:\Users\VR\WebstormProjects\end-to-end-tests\acceptance-tests\upload-object\upload-object.spec.js:25:5)
    at addSpecsToSuite (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:994:25)
    at Env.fdescribe (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:982:7)
    at fdescribe (C:\Users\VR\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:4060:18)
    at Object.<anonymous> (C:\Users\VR\WebstormProjects\end-to-end-tests\acceptance-tests\upload-object\upload-object.spec.js:15:1)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)