ios - Xamarin.iOS 无法编译项目 "app was built for iOS 10.2 which is newer than this simulator"

Question

我正在使用 Xamarin.iOS，现在我正在使用 library(from GitHub) 进行一些测试提供一些 Material UI 元素，它已经有一个 Xamarin 绑定(bind)和一些示例，问题是我无法编译示例项目 .

我收到以下错误: dyld:应用程序是为 iOS 10.2 构建的，比这个模拟器 10.1 更新

/Users/user/Projects/MaterialControls.Xamarin.Sample/iOS/LaunchScreen.storyboard: Error: dyld: app was built for iOS 10.2 which is newer than this simulator 10.1 2017-03-10 11:57:49.396 ibtoold[3878:537684] [MT] DVTAssertions: Warning in /Library/Caches/com.apple.xbs/Sources/IDEInterfaceBuilder/IDEInterfaceBuilder-11762/InterfaceBuilderKit/Utilities/IBAbstractInterfaceBuilderPlatformToolManager.m:254 Details: Failed to attach to Interface Builder Cocoa Touch Tool with error: Error Domain=com.apple.InterfaceBuilder Code=-1 "Encountered an error communicating with Interface Builder Cocoa Touch Tool." UserInfo={NSUnderlyingError=0x7fdce34aea00 {Error Domain=com.apple.InterfaceBuilder Code=-1 "Failed to launch Interface Builder Cocoa Touch Tool via CoreSimulator spawn" UserInfo={NSLocalizedDescription=Failed to launch Interface Builder Cocoa Touch Tool via CoreSimulator spawn, NSUnderlyingError=0x7fdce345dfb0 {Error Domain=com.apple.InterfaceBuilder Code=-1 "Failed to handshake with platform tool" UserInfo={NSUnderlyingError=0x7fdce3467550 {Error Domain=com.apple.InterfaceBuilder Code=-1 "" UserInfo=0x7fdce0c18e70 (not displayed)}, NSLocalizedFailureReason=Failed to open connection over FIFOs with platform tool, NSLocalizedDescription=Failed to handshake with platform tool}}}}, NSLocalizedDescription=Encountered an error communicating with Interface Builder Cocoa Touch Tool., NSLocalizedRecoverySuggestion=Please check Console.app for crash reports for "Interface Builder Cocoa Touch Tool" for further information., NSLocalizedFailureReason=Interface Builder Cocoa Touch Tool (3880) failed to launch and exited with status 6} Object: Method: +_THREADSAFE_launchNewToolWithLaunchContext:executionContext:toolProxyClass:failureContext:requestingMethod:error:forReason: Thread: {number = 1, name = main} Please file a bug at http://bugreport.apple.com with this warning message and any useful information you can provide. 2017-03-10 11:57:49.563 ibtoold[3878:537684] [MT] IBPlatformTool: *** Failed to launch tool with description System content 2x for IBCocoaTouchFramework-NineOneAndLater w/ default fidelity: Encountered an error communicating with Interface Builder Cocoa Touch Tool. (Failure reason: Interface Builder Cocoa Touch Tool (3880) failed to launch and exited with status 6): Failed to launch Interface Builder Cocoa Touch Tool via CoreSimulator spawn: Failed to handshake with platform tool (Failure reason: Failed to open connection over FIFOs with platform tool): : Failed to open FIFOs for handshaking with platform tool (Failure reason: Interface Builder Cocoa Touch Tool exited before we could handshake) 2017-03-10 11:58:00.489 ibtoold[3878:537684] [MT] IBPlatformTool: Wrote failed marshalling request diagnostics to path: /var/folders/ys/w39_59552d9f24bfwk9cvjlm0000gq/T/IB-agent-diagnostics_2017-03-10_11-57-55_996000 (MaterialControls.Xamarin.Sample.iOS)

这是我尝试过的:

更新Xcode(已经有最新版本8.2.1 8C1002)

更新到 macOS Sierra

再次更新 Xcode(它说它为 Sierra 安装了一些新工具)

更新 Xamarin Studio(已经有最新版本)

更新项目包

尝试使用 10.2 创建模拟器，但它没有显示为选项

尝试安装 10.2 运行时，但它没有显示为下载

的选项

尝试在 10.2.1 (14D27)

的 iPhone 上运行

将部署目标更改为不同的版本

以上都不起作用，我不断收到同样的错误。我对 iOS 开发非常陌生，我只为 Android 使用过 Xamarin，所以我可能会遗漏一些明显的东西。

任何帮助将不胜感激。

Answer 1

在这种情况下对我有用的是删除全局可用的模拟器目录 /Library/Developer/CoreSimulator/ .