Xamarin.iOS Designer not loading

The iOS designer no longer loads any xib or storyboard files for any project. It is stuck with the progress bar working indefinitely. My setup:
1. Windows 7 and Visual Studio 2017 Enterprise Version 15.4.5
2. Xamarin, Xamarin.iOS
3. Mac OS 10.13.1
4. XCode 9.1

What I have tried:
1. Restarting both machines
2. Cleaning (physically removing all bin and obj folders) and rebuilding
3. Deleting username/Library/Caches/Xamarin/XMA on the Mac and username\AppData\Local\Temp\Xamarin\XMA on the PC.

As of last week it was working fine and now it's broken. The only thing I'm aware of changing was the Mac installed a security update and rebooted. Also worth noting: the designer works fine in VS Community on the Mac, and on a different PC with Windows 10 and VS 2017.

Best Answer


  • Same here. I have the same versions of VS, Xamarin, OSX and XCode, but run Windows 10. The iOS-Designer in VS does not load any xib. On the Mac the MonoTouchDesignServerUnified process eats ~70% CPU in the meantime.

  • Please let me know how to overcome this. I am also faced the same problem.

  • JonathanEckJonathanEck USMember ✭✭

    Thanks @JohnMiller. But when I start VS 2017 and go to Extensions and Updates, it doesn't say there is a Xamarin update. How do I get the update?

  • JohnMillerJohnMiller USForum Administrator, Xamarin Team Xamurai


    You can download the VS 2017 installer.

    The details are available in the release blog post too; in the Installing section. Hope that helps!

  • JonathanEckJonathanEck USMember ✭✭

    Okay, I will try the VS 2017 installer route. But for future reference, why doesn't the Extensions and Update mechanism work? In the past, I would automatically get notifications that an update was available.

  • JohnMillerJohnMiller USForum Administrator, Xamarin Team Xamurai

    That changed with VS 2017. Xamarin is no longer shipped as a separate extension. It's shipped with Visual Studio.

  • Now I have VS 2017 (15.5.0), Xamarin, Xamarin Designer 4.8.182, Xamarin Android and Xamarin.iOS on my Windows machine and VS Mac (7.3 build 797), Xamarin,iOS on my Mac and the xibs open again.

  • JonathanEckJonathanEck USMember ✭✭

    I was also able to update to VS 2017 15.5.0 and that fixed the problem. Thank you.

  • Thanks for your update. I will try the latest one .

  • AkilaRajaramAkilaRajaram INMember
    edited December 2017

    Now storyboard is loading but General viewing option is missing in storyboard designer and also how to remove constraints in new version 15.5.1 VS 2017. Please let me know how to switch General view option.

  • JonathanEckJonathanEck USMember ✭✭

    @AkilaRajaram I suggest you create a new question thread because my original question has been answered, and you have a different question.

  • TamasMatraiTamasMatrai HUUniversity ✭✭
    edited December 2017

    StoryBoard does not open in my Visual Studio for Mac.

    === Visual Studio Professional 2017 for Mac ===

    Version 7.3.2 (build 12)
    Installation UUID: 62ea56eb-01a3-4052-a63a-a37c3f0408c8
    Mono (2017-06/e66d9abbb27) (64-bit)
    GTK+ 2.24.23 (Raleigh theme)

    Package version: 504010007

    === NuGet ===


    === .NET Core ===

    Runtime: /usr/local/share/dotnet/dotnet
    Runtime Versions:
    SDK: /usr/local/share/dotnet/sdk/2.0.0/Sdks
    SDK Versions:
    MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.4.1/lib/mono/msbuild/15.0/bin/Sdks

    === Xamarin.Profiler ===

    '/Applications/Xamarin Profiler.app' not found

    === Apple Developer Tools ===

    Xcode 9.2 (13772)
    Build 9C40b

    === Xamarin.iOS ===

    Version: (Visual Studio Professional)
    Hash: 6857dfcc
    Branch: xcode9.2
    Build date: 2017-12-04 21:20:41-0500

    === Xamarin.Android ===

    Version: (Visual Studio Professional)
    Android SDK: /Users/tamasmatrai/Library/Developer/Xamarin/android-sdk-macosx
    Supported Android versions:
    6.0 (API level 23)
    7.1 (API level 25)

    SDK Tools Version: 25.1.2
    SDK Platform Tools Version: 24.0.0
    SDK Build Tools Version: 23.0.2

    Java SDK: /usr
    java version "1.8.0_60"
    Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
    Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

    Android Designer EPL code available here:

    === Xamarin.Mac ===

    Version: (Visual Studio Professional)

    === Xamarin Inspector ===

    Version: 1.4.0-beta1
    Hash: 2e30f47
    Branch: master
    Build date: Tue, 14 Nov 2017 22:32:31 GMT
    Client compatibility: 1

    === Build Information ===

    Release ID: 703020012
    Git revision: 7d0c9d7ad46b125cf4b7bbf9532c0531b6433ce6
    Build date: 2017-12-12 14:03:18-05
    Xamarin addins: 6dddaa49fbecb2695fcdcd6b712eb269e288518c
    Build lane: monodevelop-lion-d15-5

    === Operating System ===

    Mac OS X 10.12.6
    Darwin 16.7.0 Darwin Kernel Version 16.7.0
    Thu Jun 15 17:36:27 PDT 2017
    root:xnu-3789.70.16~2/RELEASE_X86_64 x86_64

    === Enabled user installed addins ===

    Internet of Things (IoT) development (Preview) 7.1

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