Bug 44523 - Simulator black after upgrade to XCode 8 and latest Xamarin
Summary: Simulator black after upgrade to XCode 8 and latest Xamarin
Alias: None
Product: Windows iOS Simulator
Classification: Xamarin
Component: Simulator ()
Version: unspecified
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2016-09-20 13:22 UTC by Kenneth
Modified: 2016-10-18 19:35 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

xamarin log files (6.01 KB, application/x-zip-compressed)
2016-09-20 13:22 UTC, Kenneth
Video (2.78 MB, video/mp4)
2016-09-20 13:27 UTC, Kenneth

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report on Developer Community with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:

Description Kenneth 2016-09-20 13:22:16 UTC
Created attachment 17611 [details]
xamarin log files

My iOS simulator is no longer working in Windows after upgrading Xamarin and XCode. Please see attached video and attached log files.

Ive tried running old projects I know worked. Downloading iOS 9.x simulators. Same problem.


Microsoft Visual Studio Professional 2015
Version 14.0.25431.01 Update 3
Microsoft .NET Framework
Version 4.6.01586

Installed Version: Professional

LightSwitch for Visual Studio 2015   00322-50051-89739-AA852
Microsoft LightSwitch for Visual Studio 2015

Visual Basic 2015   00322-50051-89739-AA852
Microsoft Visual Basic 2015

Visual C# 2015   00322-50051-89739-AA852
Microsoft Visual C# 2015

Visual C++ 2015   00322-50051-89739-AA852
Microsoft Visual C++ 2015

Application Insights Tools for Visual Studio Package   7.6.00907.1
Application Insights Tools for Visual Studio

ASP.NET and Web Tools 2015.1 (Beta8)   14.1.11107.0
ASP.NET and Web Tools 2015.1 (Beta8)

ASP.NET Web Frameworks and Tools 2012.2   4.1.41102.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563

ASP.NET Web Frameworks and Tools 2013   5.2.40314.0
For additional information, visit http://www.asp.net/

Clear MEF Component Cache   1.3.1
Clears the Visual Studio MEF component cache to fix issues with cache corruption.

Command Bus, Event Stream and Async Manager   Merq
Provides ICommandBus, IEventStream and IAsyncManager MEF services for loosely coupled Visual Studio extension components communication and integration.

Common Azure Tools   1.8
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Git Source Control Provider

JavaScript Language Service   2.0
JavaScript Language Service

JavaScript Project System   2.0
JavaScript Project System

JetBrains ReSharper Ultimate 10.0.2   Build 104.0.20151218.120627
JetBrains ReSharper Ultimate package for Microsoft Visual Studio. For more information about ReSharper Ultimate, visit http://www.jetbrains.com/resharper. Copyright © 2016 JetBrains, Inc.

Microsoft Azure Mobile Services Tools   1.4
Microsoft Azure Mobile Services Tools

NuGet Package Manager   3.4.4
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.

PreEmptive Analytics Visualizer   1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.

SQL Server Data Tools   14.0.60519.0
Microsoft SQL Server Data Tools

TortoiseGitToolbar   1.0
Lightweight toolbar for launching commonly used TortoiseGit functionality from within Visual Studio.

TypeScript tools for Visual Studio

Windows Installer XML Toolset
Windows Installer XML Toolset version
Copyright (c) Outercurve Foundation. All rights reserved.

Xamarin (c4382f5)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android (0e59c36)
Visual Studio extension to enable development for Xamarin.Android.

Xamarin.iOS (6c3fee4)
Visual Studio extension to enable development for Xamarin.iOS.
Comment 1 Kenneth 2016-09-20 13:24:17 UTC
The app works fine when deploying to the simulator on osx (disabling the windows simulator)
Comment 2 Kenneth 2016-09-20 13:27:08 UTC
Created attachment 17612 [details]
Comment 3 Kenneth 2016-09-20 13:34:39 UTC
Additional info: as seen in the video, I can't even press home to see the home screen of the sim, and the same home screen doesnt show on loading the simulator, as it used to.
Comment 4 Eric Maupin 2016-09-20 14:54:58 UTC
The logs you've attached don't include the simulator logs which are in C:\Users\<user>\AppData\Local\Xamarin\Logs\Xamarin.Simulator

Have you updated to the latest version of the simulator? It does not currently update with the rest of Xamarin. https://developer.xamarin.com/guides/cross-platform/windows/ios-simulator/
Comment 5 Kenneth 2016-09-20 18:36:06 UTC
Thank you for your swift feedback. That solved my problem, I forgot updating the windows sim. 

There should be some kind of feature preventing this from happening, either with a big warning or something else when there is a mismatch in version :/
Comment 6 Eric Maupin 2016-10-18 19:35:44 UTC
We're looking into improving this scenario going forward. The original issue is resolved, so I'm marking it fixed.