This is my first time to instrument an app on Mobile-iOS and tried several times the instrumentation Wizard .
1- I choose iOS as target technolofy to instrument --> Instrement & deploy custom IPA --> choose the APP --> click on next. Than i get the following Error.

System.NullReferenceException: Object reference not set to an instance of an object.
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.IosSigning.GetBerEncodedSignedCms(Byte[] codeDirDigest)
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.IosSigning.GetCmsBlob(Byte[] codeDirBlob)
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.IosSigning.Sign()
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.BaseSignUnit.Sign()
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.FrameworkSignUnit.Sign()
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.IosSigningService.Sign()
at Ranorex.Plugin.Mobile.Tools.Ios.Instrumentation.IosInstrumentation.StartInstrumentation()
at Ranorex.Plugin.Mobile.Tools.Ios.IosToolRunner.Instrument(IIosOptions options, Action`2 progressCallback, String& instrumentedIpaPath)
at Ranorex.Plugin.Mobile.Tools.Ios.IosToolRunner.Instrument(IOptions options, Action`2 progressCallback, Action`1 msgCallback)
at Ranorex.Plugin.Mobile.RxIntegration.Instrumentation.IosWorker.Run()
at Ranorex.Controls.Instrumentation.IosResultPage.bgw_DoWork(Object sender, DoWorkEventArgs e)
Are there anyone who can help me?