我最近将项目更改为使用.NET core 2，并且我目前正在重新测试WPF，Android和iOS。
不幸的是，我也一直在升级我的Nugets以使UWP项目正常工作，并且Xcode也在今天早上也更新到了版本12.0（12A7209），接着是Visual Studio for Mac，所以我不太确定该归咎于-
我确实遇到了App Center不想从3.4.1升级到3.4.2的问题，所以我诉诸于清除我的Nuget缓存并手动编辑项目解决方案，现在它们都指向3.4.2（最新版本）截至2020年9月23日）。
以下错误似乎是根本原因，但我不知道该怎么解决？
NSInvalidArgumentException Reason: +[MSAnalytics sharedInstance]: unrecognized selector sent to class 0x1eb4f2678
崩溃日志...
2020-09-23 13:16:16.816 MYAPP
.iOS[3555:1395741] +[MSAnalytics sharedInstance]: unrecognized selector sent to class 0x1eb4f2678
2020-09-23 13:16:19.770 MYAPP
.iOS[3555:1395741] [AppCenterCrashes] ERROR: +[MSWrapperLogger MSWrapperLog:tag:level:]/10 Unhandled Exception:
Foundation.MonoTouchException: Objective-C exception thrown. Name: NSInvalidArgumentException Reason: +[MSAnalytics sharedInstance]: unrecognized selector sent to class 0x1eb4f2678
Native stack trace:
0 CoreFoundation 0x000000018d51e5c0 472C9193-115D-34CD-AD1D-0E7E091C9432 + 1185216
1 libobjc.A.dylib 0x00000001a159842c objc_exception_throw + 60
2 CoreFoundation 0x000000018d42d324 472C9193-115D-34CD-AD1D-0E7E091C9432 + 197412
3 CoreFoundation 0x000000018d521130 472C9193-115D-34CD-AD1D-0E7E091C9432 + 1196336
4 CoreFoundation 0x000000018d523420 _CF_forwarding_prep_0 + 96
5 MYAPP
.iOS 0x0000000108af7388 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 78359712
6 CoreFoundation 0x000000018d4af2a8 472C9193-115D-34CD-AD1D-0E7E091C9432 + 729768
7 CoreFoundation 0x000000018d4aed80 CFSortIndexes + 320
8 CoreFoundation 0x000000018d4017d0 472C9193-115D-34CD-AD1D-0E7E091C9432 + 18384
9 MYAPP
.iOS 0x0000000108af7318 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 78359600
10 MYAPP
.iOS 0x0000000108af6f10 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 78358568
11 MYAPP
.iOS 0x0000000108af6e54 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 78358380
12 MYAPP
.iOS 0x0000000108af5c88 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 78353824
13 MYAPP
.iOS 0x00000001081a75b4 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 68595404
14 MYAPP
.iOS 0x000000010819617c _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 68524692
15 MYAPP
.iOS 0x00000001081afeac _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 68630468
16 MYAPP
.iOS 0x00000001081b21a4 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 68639420
17 MYAPP
.iOS 0x0000000107e174b0 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 64859592
18 MYAPP
.iOS 0x00000001071340d8 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 51345904
19 MYAPP
.iOS 0x0000000106d7181c _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 47403316
20 MYAPP
.iOS 0x00000001040ece78 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 722832
21 MYAPP
.iOS 0x00000001049af660 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 9908088
22 MYAPP
.iOS 0x0000000108b671d4 mono_pmip + 28148
23 MYAPP
.iOS 0x0000000108c23420 mono_pmip + 798784
24 MYAPP
.iOS 0x0000000108c26c84 mono_pmip + 813220
25 MYAPP
.iOS 0x000000010403eba8 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 9408
26 MYAPP
.iOS 0x000000010403f39c _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 11444
27 UIKitCore 0x000000018fe34a68 47154C6D-47DF-3ABB-A152-56B159B014E4 + 12032616
28 UIKitCore 0x000000018fe36ac4 47154C6D-47DF-3ABB-A152-56B159B014E4 + 12040900
29 UIKitCore 0x000000018fe3c478 47154C6D-47DF-3ABB-A152-56B159B014E4 + 12063864
30 UIKitCore 0x000000018f4cdd70 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2174320
31 UIKitCore 0x000000018fa194d4 _UIScenePerformActionsWithLifecycleActionMask + 112
32 UIKitCore 0x000000018f4ce8c0 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2177216
33 UIKitCore 0x000000018f4ce38c 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2175884
34 UIKitCore 0x000000018f4ce6d0 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2176720
35 UIKitCore 0x000000018f4cdf48 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2174792
36 UIKitCore 0x000000018f4d6078 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2207864
37 UIKitCore 0x000000018f92bc28 47154C6D-47DF-3ABB-A152-56B159B014E4 + 6753320
38 UIKitCore 0x000000018fa31810 _UISceneSettingsDiffActionPerformChangesWithTransitionContext + 272
39 UIKitCore 0x000000018f4d5df0 47154C6D-47DF-3ABB-A152-56B159B014E4 + 2207216
40 UIKitCore 0x000000018f30aeb0 47154C6D-47DF-3ABB-A152-56B159B014E4 + 327344
41 UIKitCore 0x000000018f30986c 47154C6D-47DF-3ABB-A152-56B159B014E4 + 321644
42 UIKitCore 0x000000018f30aad8 47154C6D-47DF-3ABB-A152-56B159B014E4 + 326360
43 UIKitCore 0x000000018fe3a668 47154C6D-47DF-3ABB-A152-56B159B014E4 + 12056168
44 UIKitCore 0x000000018f954274 47154C6D-47DF-3ABB-A152-56B159B014E4 + 6918772
45 FrontBoardServices 0x000000019c4d02dc A1960BD9-CE29-3E96-817D-955EBEB140BE + 37596
46 FrontBoardServices 0x000000019c4faa00 A1960BD9-CE29-3E96-817D-955EBEB140BE + 211456
47 FrontBoardServices 0x000000019c4ded24 A1960BD9-CE29-3E96-817D-955EBEB140BE + 97572
48 FrontBoardServices 0x000000019c4fa6d0 A1960BD9-CE29-3E96-817D-955EBEB140BE + 210640
49 libdispatch.dylib 0x000000018d11cac8 8E662F82-B1E4-3E7E-A376-18E9755A8F51 + 15048
50 libdispatch.dylib 0x000000018d120348 8E662F82-B1E4-3E7E-A376-18E9755A8F51 + 29512
51 FrontBoardServices 0x000000019c5220e0 A1960BD9-CE29-3E96-817D-955EBEB140BE + 372960
52 FrontBoardServices 0x000000019c521d88 A1960BD9-CE29-3E96-817D-955EBEB140BE + 372104
53 FrontBoardServices 0x000000019c5222ac A1960BD9-CE29-3E96-817D-955EBEB140BE + 373420
54 CoreFoundation 0x000000018d49b81c 472C9193-115D-34CD-AD1D-0E7E091C9432 + 649244
55 CoreFoundation 0x000000018d49b718 472C9193-115D-34CD-AD1D-0E7E091C9432 + 648984
56 CoreFoundation 0x000000018d49aa94 472C9193-115D-34CD-AD1D-0E7E091C9432 + 645780
57 CoreFoundation 0x000000018d494d20 472C9193-115D-34CD-AD1D-0E7E091C9432 + 621856
58 CoreFoundation 0x000000018d4944bc CFRunLoopRunSpecific + 600
59 GraphicsServices 0x00000001a3f19820 GSEventRunModal + 164
60 UIKitCore 0x000000018fe38734 47154C6D-47DF-3ABB-A152-56B159B014E4 + 12048180
61 UIKitCore 0x000000018fe3de10 UIApplicationMain + 168
62 MYAPP
.iOS 0x0000000105c6d838 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 29561168
63 MYAPP
.iOS 0x0000000105328ef0 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 19843080
64 MYAPP
.iOS 0x0000000105328d74 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 19842700
65 MYAPP
.iOS 0x00000001040ec0d0 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 719336
66 MYAPP
.iOS 0x00000001049af660 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 9908088
67 MYAPP
.iOS 0x0000000108b671d4 mono_pmip + 28148
68 MYAPP
.iOS 0x0000000108c23420 mono_pmip + 798784
69 MYAPP
.iOS 0x0000000108c29678 mono_pmip + 823960
70 MYAPP
.iOS 0x0000000108b4578c _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 78680228
71 MYAPP
.iOS 0x0000000108d2fc34 xamarin_localized_string_format_9 + 24676
72 MYAPP
.iOS 0x00000001040ebfd8 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 719088
73 libdyld.dylib 0x000000018d15be60 90A4E82E-250C-35E3-8B2D-51D6D8B1119B + 3680
at ObjCRuntime.Runtime.ThrowNSException (System.IntPtr ns_exception) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/14.0.0.0/src/Xamarin.iOS/ObjCRuntime/Runtime.cs:407
at ObjCRuntime.Runtime.throw_ns_exception (System.IntPtr exc) [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios/xamarin-macios/runtime/Delegates.generated.cs:128
at (wrapper native-to-managed) ObjCRuntime.Runtime.throw_ns_exception(intptr)
at (wrapper managed-to-native) ApiDefinition.Messaging.void_objc_msgSend_IntPtr_IntPtr(intptr,intptr,intptr,intptr)
at Microsoft.AppCenter.iOS.Bindings.MSAppCenter.Start (System.String appSecret, ObjCRuntime.Class[] services) [0x00034] in <30815ef5d71a4a61bca2d2557a5ade14>:0
at Microsoft.AppCenter.AppCenter.PlatformStart (System.String appSecret, System.Type[] services) [0x0002d] in <556514ba772641f3a49c90b8d313bb6b>:0
at Microsoft.AppCenter.AppCenter.Start (System.String appSecret, System.Type[] services) [0x00000] in <556514ba772641f3a49c90b8d313bb6b>:0
at MYAPP
.App.OnStart () [0x0003a] in /Users/rob/GitHub/MYCOMPANY-MYAPP
-appv2/app/MYAPP
/MYAPP
/App.xaml.cs:94
at Xamarin.Forms.Application.SendStart () [0x00000] in D:\a\1\s\Xamarin.Forms.Core\Application.cs:346
at Xamarin.Forms.Platform.iOS.FormsApplicationDelegate.FinishedLaunching (UIKit.UIApplication uiApplication, Foundation.NSDictionary launchOptions) [0x00036] in D:\a\1\s\Xamarin.Forms.Platform.iOS\FormsApplicationDelegate.cs:58
at MYAPP
.iOS.AppDelegate.FinishedLaunching (UIKit.UIApplication app, Foundation.NSDictionary options) [0x0013e] in /Users/rob/GitHub/MYCOMPANY-MYAPP
-appv2/app/MYAPP
/MYAPP
.iOS/AppDelegate.cs:103
at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/14.0.0.0/src/Xamarin.iOS/UIKit/UIApplication.cs:86
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/14.0.0.0/src/Xamarin.iOS/UIKit/UIApplication.cs:65
at MYAPP
.iOS.Application.Main (System.String[] args) [0x00001] in /Users/rob/GitHub/MYCOMPANY-MYAPP
-appv2/app/MYAPP
/MYAPP
.iOS/Main.cs:16
版本信息...
=== Visual Studio Community 2019 for Mac ===
Version 8.7.8 (build 4)
Installation UUID: 48517e8c-1181-4780-9ee3-ffab8aec9534
GTK+ 2.24.23 (Raleigh theme)
Xamarin.Mac 6.18.0.23 (d16-6 / 088c73638)
Package version: 612000093
=== Mono Framework MDK ===
Runtime:
Mono 6.12.0.93 (2020-02/620cf538206) (64-bit)
Package version: 612000093
=== Roslyn (Language Service) ===
3.7.0-6.20427.1+18ede13943b0bfae1b44ef078b2f3923159bcd32
=== NuGet ===
Version: 5.7.0.6702
=== .NET Core SDK ===
SDK: /usr/local/share/dotnet/sdk/3.1.402/Sdks
SDK Versions:
3.1.402
3.1.401
3.1.302
3.1.301
3.1.300
3.1.200
3.1.102
3.1.101
3.0.101
3.0.100
2.1.701
2.1.505
2.1.504
2.1.503
2.1.302
2.1.4
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/6.12.0/lib/mono/msbuild/Current/bin/Sdks
=== .NET Core Runtime ===
Runtime: /usr/local/share/dotnet/dotnet
Runtime Versions:
3.1.8
3.1.7
3.1.6
3.1.5
3.1.4
3.1.2
3.1.1
3.0.1
3.0.0
2.1.22
2.1.21
2.1.20
2.1.19
2.1.18
2.1.17
2.1.16
2.1.15
2.1.14
2.1.13
2.1.12
2.1.9
2.1.8
2.1.7
2.1.2
2.0.5
=== Xamarin.Profiler ===
'/Applications/Xamarin Profiler.app' not found
=== Updater ===
Version: 11
=== Apple Developer Tools ===
Xcode 12.0 (17219)
Build 12A7209
=== Xamarin.Mac ===
Version: 6.20.2.2 (Visual Studio Community)
Hash: 817b6f72a
Branch: d16-7
Build date: 2020-07-18 18:44:59-0400
=== Xamarin.iOS ===
Version: 14.0.0.0 (Visual Studio Community)
Hash: 7ec3751a1
Branch: xcode12
Build date: 2020-09-16 11:33:15-0400
=== Xamarin Designer ===
Version: 16.7.0.495
Hash: 03d50a221
Branch: remotes/origin/d16-7-vsmac
Build date: 2020-08-28 13:12:52 UTC
=== Xamarin.Android ===
Version: 11.0.2.0 (Visual Studio Community)
Commit: xamarin-android/d16-7/025fde9
Android SDK: /Users/rob/Library/Developer/Xamarin/android-sdk-macosx
Supported Android versions:
6.0 (API level 23)
7.1 (API level 25)
8.0 (API level 26)
8.1 (API level 27)
SDK Tools Version: 26.1.1
SDK Platform Tools Version: 29.0.6
SDK Build Tools Version: 29.0.3
Build Information:
Mono: 83105ba
Java.Interop: xamarin/java.interop/d16-7@1f3388a
ProGuard: Guardsquare/proguard/proguard6.2.2@ebe9000
SQLite: xamarin/sqlite/3.32.1@1a3276b
Xamarin.Android Tools: xamarin/xamarin-android-tools/d16-7@017078f
=== Microsoft OpenJDK for Mobile ===
Java SDK: /Users/rob/Library/Developer/Xamarin/jdk/microsoft_dist_openjdk_8.0.25
1.8.0-25
Android Designer EPL code available here:
https://github.com/xamarin/AndroidDesigner.EPL
=== Android SDK Manager ===
Version: 16.7.0.13
Hash: 8380518
Branch: remotes/origin/d16-7~2
Build date: 2020-09-16 05:12:24 UTC
=== Android Device Manager ===
Version: 16.7.0.24
Hash: bb090a3
Branch: remotes/origin/d16-7
Build date: 2020-09-16 05:12:46 UTC
=== Build Information ===
Release ID: 807080004
Git revision: 9ea7bef96d65cdc3f4288014a799026ccb1993bc
Build date: 2020-09-16 17:22:54-04
Build branch: release-8.7
Xamarin extensions: 9ea7bef96d65cdc3f4288014a799026ccb1993bc
=== Operating System ===
Mac OS X 10.15.6
Darwin 19.6.0 Darwin Kernel Version 19.6.0
Thu Jun 18 20:49:00 PDT 2020
root:xnu-6153.141.1~1/RELEASE_X86_64 x86_64
答案 0 :(得分：5)
这是因为类名与某些Apple私有框架冲突。苹果在iOS 14中添加了MSAnalytics类，因此它与App Center SDK冲突。
3.4.3。在此修补程序中，MSAnalytics重命名为MSACAnalytics，以避免发生这种冲突。
与GutHub相关的问题：https://github.com/microsoft/appcenter-sdk-dotnet/issues/1445/