Thank you for try to use.
Hmn, could you show target class?

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sure below that

IMyFirstService.cs

using MagicOnion;

namespace FooSample
{
public interface IMyFirstService : IService
{
UnaryResult SumAsync(int x, int y);
}
}

additionally my project folder

from magiconion.

thanks, I've find if exists invalid class, can not generate.
I'll fix it but quick solution, separete service definition
https://github.com/neuecc/MagicOnion#project-structure and pass ServiceDefinition.csproj.

from magiconion.

thanks. i will try service project seperate.

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additionally i tried generate separate definition project and add method.
then same issue

D:\library\Unity\MagicOnion\src\MagicOnion.CodeGenerator\bin\Debug\moc.exe --input=ServiceDefin
tion\ServiceDefintion.csproj --output=GRPC-Client\Assets\Scripts\MagicOnionGenerated.cs
Project Compilation Start:ServiceDefintion\ServiceDefintion.csproj
Project Compilation Complete:00:00:06.3494738

Method Collect Start

처리되지 않은 예외: System.Exception: Invalid Return Type, method:SumLegacyTaskA
sync returnType:System.Threading.Tasks.Task<MagicOnion.UnaryResult>
위치: MagicOnion.CodeAnalysis.MethodCollector.ExtractRequestResponseType(IMet
hodSymbol method, MethodType& methodType, String& requestType, String& responseT
ype, ITypeSymbol& unwrappedOriginalResponseType) 파일 D:\library\Unity\MagicOnio
n\src\MagicOnion.CodeGenerator\CodeAnalysis\MethodCollector.cs:줄 187
위치: MagicOnion.CodeAnalysis.MethodCollector.CreateMethodDefinition(IMethodS
ymbol y) 파일 D:\library\Unity\MagicOnion\src\MagicOnion.CodeGenerator\CodeAnaly
sis\MethodCollector.cs:줄 123
위치: System.Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext() 위치: System.Linq.Buffer1..ctor(IEnumerable1 source) 위치: System.Linq.Enumerable.ToArray[TSource](IEnumerable1 source)
위치: MagicOnion.CodeAnalysis.MethodCollector.b__8_0(INamedTypeSymbol
x) 파일 D:\library\Unity\MagicOnion\src\MagicOnion.CodeGenerator\CodeAnalysis\Me
thodCollector.cs:줄 73
위치: System.Linq.Enumerable.WhereSelectArrayIterator2.MoveNext() 위치: System.Linq.Enumerable.<ConcatIterator>d__581.MoveNext()
위치: System.Linq.Buffer1..ctor(IEnumerable1 source)
위치: System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
위치: MagicOnion.CodeAnalysis.MethodCollector.Visit() 파일 D:\library\Unity\M
agicOnion\src\MagicOnion.CodeGenerator\CodeAnalysis\MethodCollector.cs:줄 72
위치: MagicOnion.CodeGenerator.Program.Main(String[] args) 파일 D:\library\Un
ity\MagicOnion\src\MagicOnion.CodeGenerator\Program.cs:줄 93

IMyFirstService.cs

using MagicOnion;
using System.Threading.Tasks;

namespace FooSample
{
public interface IMyFirstService : IService
{
UnaryResult SumAsync(int x, int y);
Task<UnaryResult> SumLegacyTaskAsync(int x, int y);
Task<ClientStreamingResult<int, string>> ClientStreamingSampleAsync();
Task<ServerStreamingResult> ServerStreamingSampleAsync(int x, int y, int z);
Task<DuplexStreamingResult<int, string>> DuplexStreamingSampleAsync();
}
}

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additionally more information to below
can not initialize ReferenceSymbols.cs INamedTypeSymbols

• Task
• TaskOfT
• GenerateDefineIf

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Is your project type new csproj?

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Yes seperated new project.
Can i append project to solution?

from magiconion.

Sorry, new means VS2017's new csproj structure.

from magiconion.

Yes. that is VS2017's new csproj structure

from magiconion.