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"Code supposed to be unreachable" (System.InvalidOperationException) on Xamarin iOS #2011

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seanfisher opened this issue Mar 17, 2017 · 4 comments
Closed

"Code supposed to be unreachable" (System.InvalidOperationException) on Xamarin iOS #2011

seanfisher opened this issue Mar 17, 2017 · 4 comments

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@seanfisher
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I'm getting a worrying exception trying to compile the AutoMapper configuration after upgrading to AutoMapper 5 or 6 in Xamarin iOS.

Here's the project layout:

SharedProject (PCL profile 111)
Model.cs

public abstract class Model: IModel
{
    Guid Id {get; set;}
    // ... Other basic properties of types Guid, Guid?, bool, byte[], string, DateTimeOffset?
}

Dto.cs

public abstract class Dto: IDto
{
    string Id {get; set;}
    // ... Other properties with types string, DateTimeOffset?, byte[], bool, and Dictionary<string, object>
}

SharedMapperConfig.cs

public class SharedMapperConfig : Profile
{
    public SharedMapperConfig()
    {
        CreateMap<Model, Dto>()
            .ForMember(d => d.Tenant, opt => opt.Ignore())
            .ForMember(d => d.CreatedByUserName, opt => opt.Ignore())
            .ForMember(d => d.ModifiedByUserName, opt => opt.Ignore())
            .ForMember(d => d.Extension, opt => opt.Ignore())
            ;
    }
}

iOS Native Xamarin project (references SharedProject)
Main.cs

static void Main(string[] args)
{
    AutoMapper.Mapper.Initialize(cfg =>
    {
        cfg.AddProfile<SharedMapperConfig>();
    });

    var c = AutoMapper.Mapper.Configuration;
    c.CompileMappings();
}

On the c.CompileMappings(); call (also happens when trying to use the map), I get the following error/stack trace:

2017-03-17 11:42:47.220 MyProjectiOS[69862:1260074] Unhandled managed exception:
The type initializer for 'iOS.App.Application' threw an exception. (System.TypeInitializationException)
(null)
 --- inner exception ---
Code supposed to be unreachable (System.InvalidOperationException)
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileReducibleExpression (System.Linq.Expressions.Expression expr) [0x0002a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1585 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x004ea] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1721 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileIndexAssignment (System.Linq.Expressions.BinaryExpression node, System.Boolean asVoid) [0x00047] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:452 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAssignBinaryExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00041] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:524 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00059] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1602 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00006] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1591 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:379 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00066] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1606 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockStart (System.Linq.Expressions.BlockExpression node) [0x000b0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:405 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00007] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:376 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00066] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1606 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00006] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1591 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileConditionalExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00071] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:828 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x001d2] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1644 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00085] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1620 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileLoopExpression (System.Linq.Expressions.Expression expr) [0x00064] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:856 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x00469] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1694 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00085] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1620 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00006] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1591 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:379 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00066] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1606 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockStart (System.Linq.Expressions.BlockExpression node) [0x000b0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:405 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00007] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:376 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x003d0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1683 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00012] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1593 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileConditionalExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x000b7] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:834 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x001d2] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1644 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileVariableAssignment (System.Linq.Expressions.BinaryExpression node, System.Boolean asVoid) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:513 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAssignBinaryExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x0005b] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:533 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00059] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1602 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockStart (System.Linq.Expressions.BlockExpression node) [0x000b0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:405 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00007] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:376 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00066] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1606 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00006] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1591 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:379 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00066] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1606 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00006] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1591 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:379 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x003d0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1683 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileTryExpression (System.Linq.Expressions.Expression expr) [0x0005a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1159 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x004a2] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1697 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileAsVoid (System.Linq.Expressions.Expression expr) [0x00085] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1620 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockStart (System.Linq.Expressions.BlockExpression node) [0x000b0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:405 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00007] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:376 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x003d0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1683 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00012] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1593 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileConditionalExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x000b7] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:834 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x001d2] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1644 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00012] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1593 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileBlockExpression (System.Linq.Expressions.Expression expr, System.Boolean asVoid) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:379 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileNoLabelPush (System.Linq.Expressions.Expression expr) [0x003d0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1683 
  at Microsoft.Scripting.Interpreter.LightCompiler.Compile (System.Linq.Expressions.Expression expr) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:1729 
  at Microsoft.Scripting.Interpreter.LightCompiler.CompileTop (System.Linq.Expressions.LambdaExpression node) [0x00055] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Interpreter/LightCompiler.cs:221 
  at Microsoft.Scripting.Generation.CompilerHelpers.LightCompile (System.Linq.Expressions.LambdaExpression lambda) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Dynamic/Generation/CompilerHelpers.cs:619 
  at System.Linq.Expressions.Compiler.LambdaCompiler.Compile (System.Linq.Expressions.LambdaExpression lambda, System.Runtime.CompilerServices.DebugInfoGenerator debugInfoGenerator) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/System.Core/System.Linq.Expressions.Interpret/LambdaCompiler.cs:41 
  at System.Linq.Expressions.LambdaExpression.Compile () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/dlr/Runtime/Microsoft.Scripting.Core/Ast/LambdaExpression.cs:127 
  at AutoMapper.MapperConfiguration+MapperFuncs..ctor (AutoMapper.MapRequest mapRequest, System.Linq.Expressions.LambdaExpression typedExpression) [0x00014] in <9d31ff1ce9684892a94fa57ea76dd5aa>:0 
  at AutoMapper.MapperConfiguration.CreateMapperFuncs (AutoMapper.MapRequest mapRequest) [0x00008] in <9d31ff1ce9684892a94fa57ea76dd5aa>:0 
  at (wrapper delegate-invoke) System.Func`2[AutoMapper.MapRequest,AutoMapper.MapperConfiguration+MapperFuncs]:invoke_TResult_T (AutoMapper.MapRequest)
  at AutoMapper.LockingConcurrentDictionary`2+<>c__DisplayClass2_1[TKey,TValue].<.ctor>b__1 () [0x00000] in <9d31ff1ce9684892a94fa57ea76dd5aa>:0 
  at (wrapper delegate-invoke) System.Func`1[AutoMapper.MapperConfiguration+MapperFuncs]:invoke_TResult ()
  at System.Lazy`1[T].CreateValue () [0x00075] in /Library/Frameworks/Xamarin.iOS.framework/Versions/10.4.0.128/src/mono/mcs/class/referencesource/mscorlib/system/Lazy.cs:437 
2017-03-17 11:42:47.221 MyProjectiOS[69862:1260074] critical: Stacktrace:

2017-03-17 11:42:47.221 MyProjectiOS[69862:1260074] critical: 
Native stacktrace:

2017-03-17 11:42:47.222 MyProjectiOS[69862:1260074] critical: 	0   MyProjectiOS                  0x0029fa4d mono_handle_native_sigsegv + 317
2017-03-17 11:42:47.222 MyProjectiOS[69862:1260074] critical: 	1   MyProjectiOS                  0x002a9af1 sigabrt_signal_handler + 161
2017-03-17 11:42:47.222 MyProjectiOS[69862:1260074] critical: 	2   libsystem_platform.dylib            0x0c8a6ebb _sigtramp + 43
2017-03-17 11:42:47.222 MyProjectiOS[69862:1260074] critical: 	3   ???                                 0xffffffff 0x0 + 4294967295
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	4   libsystem_c.dylib                   0x0c61b11f abort + 141
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	5   MyProjectiOS                  0x0047eb50 _ZL20print_all_exceptionsP10MonoObject + 0
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	6   MyProjectiOS                  0x0031fc8b mono_invoke_unhandled_exception_hook + 139
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	7   MyProjectiOS                  0x00227d9e mono_jit_exec + 350
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	8   MyProjectiOS                  0x0048cf14 xamarin_main + 3380
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	9   MyProjectiOS                  0x00524031 main + 113
2017-03-17 11:42:47.223 MyProjectiOS[69862:1260074] critical: 	10  libdyld.dylib                       0x0c575799 start + 1
2017-03-17 11:42:47.224 MyProjectiOS[69862:1260074] critical: 
=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

I've tried upgrading everything to AutoMapper 6, with no luck.

Looks like something in the way the expressions are compiled with Mono? Any ideas or tips on debugging this? I feel like AutoMapper should warn if any of the mappings are invalid, and since the Model and Dto are fairly simple classes, there shouldn't be any problems.
@lbargaoanu
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You should report this to the Mono team.

@seanfisher
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FYI I opened a bugzilla issue for the Mono team

@imuller
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imuller commented Apr 19, 2017

How can I get access to the 15.2 update with the fix?

@lock
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lock bot commented May 6, 2019

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

@lock lock bot locked as resolved and limited conversation to collaborators May 6, 2019
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@seanfisher @imuller @lbargaoanu