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My Xamarin.iOS app can be built but cannot be installed in debug mode with Xcode-beta simulator. When I hit the run button simulator (IPhone 7 11.0 - also tried other types) does not start and gives error. I cannot debug right now and test iOS 11.0 compatibity of my app. Any help will be appreciated. Here is the output:

error HE0003: Could not load the framework 'CoreSimulator' (path: /Applications/Xcode-beta.app/Contents/Developer/Library/PrivateFrameworks/CoreSimulator.framework/CoreSimulator): not found.

Falko
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gomozor
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    Xcode 9 GM Seed is available. Try using it: https://stackoverflow.com/questions/44390162/download-install-xcode-9-beta-or-xcode-9-gm-seed-version-without-premium-dev/44390183#44390183 – Krunal Sep 13 '17 at 10:55
  • I tried but it also does not include ~/Contents/Developer/Library/PrivateFrameworks/CoreSimulator.framework – gomozor Sep 13 '17 at 11:25
  • Have you run Xcode since downloading it? It needs to be run once to configure everything. – JimBobBennett Sep 14 '17 at 04:54
  • Yeah I did it as the xamarin ios 11.0 release page has suggested. Now, it resolved the reason for not working was because of not being supported by xamarin at the time apple release xcode. – gomozor Sep 16 '17 at 06:34
  • As commented in this link, seems not all VS for Mac versions support XCode9: https://bugzilla.xamarin.com/show_bug.cgi?id=58417 – oarrivi Sep 30 '17 at 10:48
  • After Xcode-9.0 stable release there isn't a problem anymore but thanks for the answer. – gomozor Sep 30 '17 at 13:11
  • Had the same error after updating to Xcode 9.2 but still needed to update Visual Studio and Xamarin.iOS. – Christopher Stephan Jan 19 '18 at 15:05
  • @ChristopherStephan, I have the same issue, Xcode 9.2, Mac VS: 7.3.3, Win VS:15.2 (26430.16) Which version solved this issue to you? – Zoli Feb 12 '18 at 16:52
  • Xcode 9.0 worked for me. Also, this was temporary and there were continuous updates when I have been dealing with this issue. Can u specify your problem? – gomozor Feb 12 '18 at 16:54
  • I can run xamarin ios app on the simulator, properly connected to the mac, but when I try to open 'LaunchScreen.storyboard', I got error: `The iOS Designer requires an active connection to a Mac server. Please connect to a Mac to enable the designer.` Opening the log: `System.IO.FileNotFoundException: /Applications/Xcode.app/Contents/Developer/Library/PrivateFrameworks/CoreSimulator.framework/CoreSimulator` I have latest Mac VS, xcode 9.2, but my win VS is a bit outdated (15.2) Maybe I should install 15.6? – Zoli Feb 12 '18 at 17:10
  • It might be about your windows vs packages. Have u tried to edit storyboard on a mac? I think you should try – gomozor Feb 12 '18 at 17:49
  • Ok, interesting, I restarted both machine -> still did not work. Waited some minutes, tried again, and **surprise** , it works now, I see the storyboard editor on windows/xamarin. Xamarin mysteries... – Zoli Feb 13 '18 at 09:40

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