C# Xamarin iOS new StackTrace（）杀死应用程序：断言条件'klass’；不期而遇
我们正在开发一款Xamarin iOS应用程序，突然间，该应用程序在某些地方的一些日志代码上开始崩溃。除了应用程序本身之外，我们还有一个名为C# Xamarin iOS new StackTrace（）杀死应用程序：断言条件'klass’；不期而遇,c#,ios,xamarin.ios,mono,uikit,C#,Ios,Xamarin.ios,Mono,Uikit,我们正在开发一款Xamarin iOS应用程序，突然间，该应用程序在某些地方的一些日志代码上开始崩溃。除了应用程序本身之外，我们还有一个名为WKGMobile.ios的xamarin ios库，其中包含一个名为GenericTableViewCell的类，该类派生自UITableViewCell。在内部，我们重写了UITableViewSource.GetCell（UITableView tableView，nsindepath indepath），在那里，我们最终调用了一个虚拟方法调用Cell
WKGMobile.iosGenericTableViewCellUITableViewCellUITableViewSource.GetCell（UITableView tableView，nsindepath indepath）CellDidLoadnew StackTrace（）public override void CellDidLoad（CheckableCellData？数据）
{
_=新堆栈跟踪（）；
}
2021-05-27 13:59:06.830061+0200 ClubmappAppIOS[2840:116592] error: * Assertion at /Users/builder/jenkins/workspace/archive-mono/2020-02/ios/release/mono/mini/mini-exceptions.c:882, condition `klass’ not met
=================================================================
Native Crash Reporting
=================================================================
Got a abrt while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
=================================================================
Native stacktrace:
=================================================================
0x10c802275 - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : mono_dump_native_crash_info
0x10c7f6dbe - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : mono_handle_native_crash
0x10c80188f - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : sigabrt_signal_handler
0x7fff6115a5fd - /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/system/libsystem_platform.dylib : _sigtramp
0x0 - Unknown
0x7fff200fab94 - /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/system/libsystem_c.dylib : abort
0x10ca14d20 - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : _ZL12log_callbackPKcS0_S0_iPv
0x10c9eda35 - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : monoeg_g_logv_nofree
0x10c9edbaf - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : monoeg_assertion_message
0x10c9edbda - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : mono_assertion_message
0x10c7f3c5b - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : mono_get_generic_context_from_stack_frame
0x10c7f4171 - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : get_method_from_stack_frame
0x10c7f4a80 - /Users/wkg/Library/Developer/CoreSimulator/Devices/CBA6C26F-5AF5-4A20-91B3-6F3DE56A77A3/data/Containers/Bundle/Application/63A2CC35-6283-494B-A483-A7DBC1BBFE32/ClubmappAppIOS.app/ClubmappAppIOS : ves_icall_get_frame_info
0x11381ff2d - Unknown
0x11381fdbb - Unknown
0x11381fa83 - Unknown
=================================================================
Basic Fault Address Reporting
=================================================================
Memory around native instruction pointer (0x7fff6113133a):0x7fff6113132a ff ff c3 90 90 90 b8 48 01 00 02 49 89 ca 0f 05 .......H...I....
0x7fff6113133a 73 08 48 89 c7 e9 e5 a2 ff ff c3 90 90 90 b8 53 s.H............S
0x7fff6113134a 00 00 02 49 89 ca 0f 05 73 08 48 89 c7 e9 cd a2 ...I....s.H.....
0x7fff6113135a ff ff c3 90 90 90 b8 83 01 00 02 49 89 ca 0f 05 ...........I....
=================================================================
Managed Stacktrace:
=================================================================
at <unknown> <0xffffffff>
at System.Diagnostics.StackFrame:get_frame_info <0x000dc>
at System.Diagnostics.StackFrame:.ctor <0x0014a>
at System.Diagnostics.StackTrace:init_frames <0x00252>
at System.Diagnostics.StackTrace:.ctor <0x00092>
at ClubmappAppIOS.Common.Views.TableView.CheckableClubmappCell.CheckableClubmappCell:CellDidLoad <0x001c2>
at WKGMobile.IOS.Components.Views.DataPresentation.IGenericCell`1:SetData <0x002c0>
at WKGMobile.IOS.Components.Views.DataPresentation.GenericDataViewSource`1:GetCell <0x00360>
at WKGMobile.IOS.Components.Views.DataPresentation.Tables.GenericTableViewSource`1:GetCell <0x0013a>
at <Module>:runtime_invoke_object__this___object_object <0x0036f>
at <unknown> <0xffffffff>
at UIKit.UIApplication:UIApplicationMain <0x00254>
at UIKit.UIApplication:Main <0x000b2>
at UIKit.UIApplication:Main <0x00132>
at ClubmappAppIOS.Application:Main <0x00302>
at <Module>:runtime_invoke_void_object <0x00198>
=================================================================
GenericTableViewCellGenericTableViewCellpublic partial class MusicTableViewCell : GenericTableViewCell<MusicListData>
{
public override float CellHeight => 80f;
public override string CellIdentifier => "MusicTableViewCell";
public MusicTableViewCell()
{
}
protected MusicTableViewCell(IntPtr handle) : base(handle)
{
// Note: this .ctor should not contain any initialization logic.
}
public override void CellDidLoad(MusicListData? data)
{
_ = new StackTrace();
}
}
公共抽象类GenericTableViewCell:UITableViewCell，IGenericCell其中TData:class，IDataPoint
{
公共抽象浮点单元格高度{get；}
公共抽象字符串CellIdentifier{get；}
公共TData？数据点{get；私有集；}
TData？IGenericCell.DataPoint{get=>DataPoint；set=>DataPoint=value；}
公共UIViewController？ParentViewController{get；internal set；}
UIViewController？IGenericCell.ParentViewController
{
get=>ParentViewController；
set=>ParentViewController=value；
}
公共GenericTableViewCell（）
{
}
公共GenericTableViewCell（IntPtr句柄）：基（句柄）
{
}
公共虚拟数据加载（TData？数据）
{
SelectedBackgroundView？？？=新建UIView（）；
SelectedBackgroundView.BackgroundColor=UIColor.Clear；
}
}
IGenericCell公共接口IGenericCell，其中TData:class，IDataPoint
{
内部保护的TData？数据点{get；set；}
公共字符串单元标识符{get；}
UIViewController？ParentViewController{get；内部集合；}
内部虚拟void SetData（TData？newData）
{
if（数据点可标识为一次性）
{
一次性的，一次性的；
}
数据点=新数据；
CellDidLoad（新数据）；
}
无效单元负载（TData？数据）；
}
IDataPointpublic interface IDataPoint
{
int Id { get; }
}
public partial class MusicTableViewCell : GenericTableViewCell<MusicListData>
{
public override float CellHeight => 80f;
public override string CellIdentifier => "MusicTableViewCell";
public MusicTableViewCell()
{
}
protected MusicTableViewCell(IntPtr handle) : base(handle)
{
// Note: this .ctor should not contain any initialization logic.
}
public override void CellDidLoad(MusicListData? data)
{
_ = new StackTrace();
}
}
公共部分类MusicTableViewCell:GenericTableViewCell
{
公共覆盖浮动单元高度=>80f；
公共重写字符串CellIdentifier=>“MusicTableViewCell”；
公共MusicTableViewCell（）
{
}
受保护的MusicTableViewCell（IntPtr句柄）：基本（句柄）
{
//注意：此.ctor不应包含任何初始化逻辑。
}
公共覆盖无效CellDidLoad（MusicListData？数据）
{
_=新堆栈跟踪（）；
}
}
mono\u get\u generic\u context\u from_stack\u frame（）System.ObjectMonoGenericContextGenericTableViewCellGenericTableViewCellmyUITableView.DequeueReusableCell（mycellidentier）IGenericCell.SetData（TData？newData）SetData（）SetData（）new StackTrace（）抛出新异常（）mono\u get\u generic\u context\u from\u stack\u frame（）mono\u-get\u-generic\u-context\u from\u stack\u frame（）mono\u-class\u-get\u-generic\u-class（klass）