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After upgrading to XCode 6.0.1 and Xam Studio 5.4 and Xam.IOS 8.x for iOS 8 support, I'm unable to get any sims to run in debug/iphonesimulator mode in both 7.1 sim and 8.0 sim modes. I stumbled upon a post in the forums and saw some people a year ago with something similar so I set the linker to "Link SDK only" and now it works. Why is it not working with Don't Link which is what is preferred when debugging?
Thanks / FYI
There is a known problem with the 7.* simulators, but the 8.0 simulator should still work (which means your problem is probably not the same as the one we know about already).
Could you get the full version information for your system from Xamarin Studio's About menu (click on the Details button?
Also is anything printed to the Application Output when you try to launch the app?
Hi Rolf - it looks like iOS 8 sims are in fact fine, my bad! Here is the info if still useful:
Version 5.4 (build 240)
Installation UUID: 04f662da-dc55-419b-a51c-58d6db062584
Mono 3.8.0 ((no/45d0ba1)
GTK+ 2.24.23 (Raleigh theme)
Package version: 308000009
Android SDK: Not found
Apple Developer Tools
Xcode 6.0.1 (6528)
Version: 126.96.36.199 (Business Edition)
Build date: 2014-09-18 09:12:55-0400
Release ID: 504000240
Git revision: 01786bc67c7024ec33d327ed27e4416d7a846f4e
Build date: 2014-09-17 10:58:48-04
Xamarin addins: 7cd7dfcd6b7b7b53281508954ec080f1cd153ad3
Mac OS X 10.9.5
Darwin neals-imac.home 13.4.0 Darwin Kernel Version 13.4.0
Sun Aug 17 19:50:11 PDT 2014
An no, there was never anything (for iOS 7.1) printed in the application output, just dies on launch immediately.
OK, I'll mark this as a duplicate of the other bug then.
A potential workaround is to enable the managed linker (in the project's iOS Build options, set "Linker Behavior" to "Link SDK assemblies only"). This will however slow down your build, so you may want to only enable it when testing iOS 7 simulators.
*** This bug has been marked as a duplicate of bug 22750 ***