StreamJsonRpc.1.4.46-beta cannot run from Xamarin.Mac application about vs-streamjsonrpc HOT 10 CLOSED

Can you share the crash info, or the syntax that the mono runtime doesn't support?
We don't have a Mac handy to repro this at the moment.

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thanks I updated in my original post

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Thanks. I'm afraid I can't tell from the failure what went wrong. There is no exception message or type. I don't see any reference to unsupported "syntax" either. Where do you see that? Any more clues you know how to get from this?

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I find my project crashes when link to this beta version (see the above crash stack). So I decide to build it from source code, when I create a Xamarin.Mac library project and include all the source code, I got a bunch of compiling errors.

For example, WebSocketMessageHandler, this kind of syntax is not supported.

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Thanks, @yingfangdu. C# syntax is irrelevant at runtime. And I don't see any exotic syntax in your diff anyway. If mono doesn't support specific APIs in the encoder/decoder we use (based on the content of your diff), then that's something we might be able to workaround. Can you share the compile errors you were seeing?

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I paste another syntax error in JsonRpc.cs AddLocalRpcTarget.

/Volumes/Yvonne/GitHub/vs-streamjsonrpc/src/StreamJsonRpcXamarin/StreamJsonRpcXamarin/../../StreamJsonRpc/JsonRpc.cs(90,90): Error CS1644: Feature `declaration expression' cannot be used because it is not part of the C# 6.0 language specification (CS1644) (StreamJsonRpcXamarin)

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../../StreamJsonRpc/Reflection/MethodSignatureAndTarget.cs(33,52): error CS1644: Feature type pattern matching' cannot be used because it is not part of the C# 6.0 language specification ../../StreamJsonRpc/HeaderDelimitedMessageHandler.cs(172,56): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification
../../StreamJsonRpc/HeaderDelimitedMessageHandler.cs(178,68): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification ../../StreamJsonRpc/JsonRpc.cs(201,16): error CS1043: Invalid accessor body =>', expecting ;' or {'
../../StreamJsonRpc/JsonRpc.cs(322,90): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification ../../StreamJsonRpc/JsonRpc.cs(379,91): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification
../../StreamJsonRpc/JsonRpc.cs(843,82): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification ../../StreamJsonRpc/JsonRpc.cs(850,82): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification
../../StreamJsonRpc/JsonRpc.cs(863,86): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification ../../StreamJsonRpc/JsonRpc.cs(970,96): error CS1644: Feature declaration expression' cannot be used because it is not part of the C# 6.0 language specification
../../StreamJsonRpc/JsonRpc.cs(1007,38): error CS1644: Feature type pattern matching' cannot be used because it is not part of the C# 6.0 language specification ../../StreamJsonRpc/WebSocketMessageHandler.cs(78,17): error CS1547: Keyword void' cannot be used in this context
../../StreamJsonRpc/WebSocketMessageHandler.cs(78,32): error CS1525: Unexpected symbol (', expecting ,', ;', or ='
../../StreamJsonRpc/WebSocketMessageHandler.cs(80,93): error CS1525: Unexpected symbol 0', expecting ,', ;', or ='
../../StreamJsonRpc/WebSocketMessageHandler.cs(80,102): error CS1525: Unexpected symbol .', expecting ,', ;', or ='
../../StreamJsonRpc/WebSocketMessageHandler.cs(80,111): error CS0128: A local variable named decodedChars' is already defined in this scope ../../StreamJsonRpc/WebSocketMessageHandler.cs(80,124): error CS1001: Unexpected symbol 0', expecting identifier
../../StreamJsonRpc/WebSocketMessageHandler.cs(80,133): error CS1001: Unexpected symbol .', expecting identifier ../../StreamJsonRpc/WebSocketMessageHandler.cs(96,33): error CS1525: Unexpected symbol Task', expecting class', delegate', enum', interface', partial', or struct'
../../StreamJsonRpc/WebSocketMessageHandler.cs(98,12): error CS1525: Unexpected symbol Requires', expecting class', delegate', enum', interface', partial', or struct' ../../StreamJsonRpc/WebSocketMessageHandler.cs(98,28): error CS1525: Unexpected symbol (', expecting class', delegate', enum', interface', partial', or struct'
../../StreamJsonRpc/WebSocketMessageHandler.cs(99,28): error CS1525: Unexpected symbol (', expecting class', delegate', enum', interface', partial', or struct' ../../StreamJsonRpc/WebSocketMessageHandler.cs(101,44): error CS1525: Unexpected symbol (', expecting class', delegate', enum', interface', partial', or struct'
../../StreamJsonRpc/WebSocketMessageHandler.cs(101,80): error CS1525: Unexpected symbol )' ../../StreamJsonRpc/WebSocketMessageHandler.cs(104,16): error CS1525: Unexpected symbol int'
../../StreamJsonRpc/WebSocketMessageHandler.cs(104,59): error CS1525: Unexpected symbol (' ../../StreamJsonRpc/WebSocketMessageHandler.cs(104,86): error CS1525: Unexpected symbol ,'
../../StreamJsonRpc/WebSocketMessageHandler.cs(104,104): error CS1525: Unexpected symbol ,' ../../StreamJsonRpc/WebSocketMessageHandler.cs(105,39): error CS1514: Unexpected symbol new', expecting .' or {'
../../StreamJsonRpc/WebSocketMessageHandler.cs(105,37): error CS1530: Keyword new' is not allowed on namespace elements ../../StreamJsonRpc/WebSocketMessageHandler.cs(105,40): error CS1525: Unexpected symbol ArraySegment'

 0 Warning(s)
 31 Error(s)

Time Elapsed 00:00:04.0223710

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I see, thanks. The syntax errors you're seeing are because you're using an old compiler. I do not expect they have any bearing to why the prebuilt nuget package fails for you at runtime. If you want to compile it locally, can you use dotnet build instead of whatever you're using now?

We'll still need to understand why you're getting runtime failures. Is there any way to get mono to produce a better runtime error message?

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I cannot get other crash logs while usually an unknown address 0xffffffff crash is caused by that it cannot find the function.

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I believe you mentioned this ended up being a mono JIT bug.
Resolving this as Won't Fix.

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