Apply PR #966 fixes to English and Japanese JSON transcoding documentation

docs/docs/integration/json-transcoding.md

@@ -26,6 +26,7 @@ builder.Services.AddMagicOnionJsonTranscodingSwagger();
 builder.Services.AddSwaggerGen(options =>
 {
     // Reflect the XML documentation comments of the service definition in Swagger.
+    // To use this feature, you must enable the Generate XML Comments option in project options.
     options.IncludeMagicOnionXmlComments(Path.Combine(AppContext.BaseDirectory, "JsonTranscodingSample.Shared.xml"));
 });
 
@@ -50,3 +51,21 @@ app.Run();
 ```
 
 ![image](https://github.com/user-attachments/assets/a101cb00-c9ad-42b6-93d4-87c0d8d23773)
+
+
+
+## Troubleshooting
+
+If you encounter the following exception at runtime, adding `builder.Services.AddEndpointsApiExplorer();` can help resolve the issue.
+```csharp
+System.AggregateException: Some services are not able to be constructed (Error while validating the service descriptor 'ServiceType: Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator Lifetime: Transient ImplementationType: Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator': No constructor for type 'Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator' can be instantiated using services from the service container and default values.)
+```
+
+
+Reference  
+MSDN documentation for the usage of Swashbuckle.AspNetCore.Swagger used in MagicOnion.  
+https://learn.microsoft.com/en-us/aspnet/core/tutorials/getting-started-with-swashbuckle?view=aspnetcore-8.0&tabs=visual-studio
+
+```csharp
+builder.Services.AddEndpointsApiExplorer();
+```

docs/i18n/ja/docusaurus-plugin-content-docs/current/integration/json-transcoding.md

@@ -28,6 +28,7 @@ builder.Services.AddMagicOnionJsonTranscodingSwagger();
 builder.Services.AddSwaggerGen(options =>
 {
     // Reflect the XML documentation comments of the service definition in Swagger.
+    // To use this feature, you must enable the Generate XML Comments option in project options.
     options.IncludeMagicOnionXmlComments(Path.Combine(AppContext.BaseDirectory, "JsonTranscodingSample.Shared.xml"));
 });
 
@@ -52,3 +53,21 @@ app.Run();
 ```
 
 ![image](https://github.com/user-attachments/assets/a101cb00-c9ad-42b6-93d4-87c0d8d23773)
+
+
+
+## トラブルシューティング
+
+実行時に以下のような例外が発生した場合、`builder.Services.AddEndpointsApiExplorer();` を追加することで解決できます。
+```csharp
+System.AggregateException: Some services are not able to be constructed (Error while validating the service descriptor 'ServiceType: Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator Lifetime: Transient ImplementationType: Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator': No constructor for type 'Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator' can be instantiated using services from the service container and default values.)
+```
+
+
+参考  
+MagicOnion で使用されている Swashbuckle.AspNetCore.Swagger の使用法が記録された MSDN ドキュメントです。  
+https://learn.microsoft.com/ja-jp/aspnet/core/tutorials/getting-started-with-swashbuckle?view=aspnetcore-8.0&tabs=visual-studio
+
+```csharp
+builder.Services.AddEndpointsApiExplorer();
+```