Swashbuckle.aspnetcore: Asp.net core 3.0 + Swash Buckle 5 rc1 issue

[jackselvam]

I am using swashbuckle 5.0.0 rc1 + asp.net core preview 3, getting below error

An error occurred while starting the application.
MissingMethodException: Method not found: 'Void Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware..ctor(Microsoft.AspNetCore.Http.RequestDelegate, Microsoft.AspNetCore.Hosting.IHostingEnvironment, Microsoft.Extensions.Options.IOptions1, Microsoft.Extensions.Logging.ILoggerFactory)'. Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.CreateStaticFileMiddleware(RequestDelegate next, IHostingEnvironment hostingEnv, ILoggerFactory loggerFactory, SwaggerUIOptions options) MissingMethodException: Method not found: 'Void Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware..ctor(Microsoft.AspNetCore.Http.RequestDelegate, Microsoft.AspNetCore.Hosting.IHostingEnvironment, Microsoft.Extensions.Options.IOptions1, Microsoft.Extensions.Logging.ILoggerFactory)'.
Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.CreateStaticFileMiddleware(RequestDelegate next, IHostingEnvironment hostingEnv, ILoggerFactory loggerFactory, SwaggerUIOptions options)
Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware..ctor(RequestDelegate next, IHostingEnvironment hostingEnv, ILoggerFactory loggerFactory, SwaggerUIOptions options)
Microsoft.Extensions.Internal.ActivatorUtilities+ConstructorMatcher.CreateInstance(IServiceProvider provider)
Microsoft.Extensions.Internal.ActivatorUtilities.CreateInstance(IServiceProvider provider, Type instanceType, object[] parameters)
Microsoft.AspNetCore.Builder.UseMiddlewareExtensions+<>c__DisplayClass4_0.b__0(RequestDelegate next)
Microsoft.AspNetCore.Builder.Internal.ApplicationBuilder.Build()
Microsoft.AspNetCore.Hosting.Internal.GenericWebHostService.StartAsync(CancellationToken cancellationToken)

[domaindrivendev]

Try 5.0.0-rc2

[QuinntyneBrown]

It works! Thanks! Hope it works for @jackselvam as well.

[jackselvam]

Yes, it's working for me also

[fairking]

I got Swashbuckle.AspNetCore 4.0.1 and I am ending up with the same error:

System.MissingMethodException: Method not found: 'Void Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware..ctor(Microsoft.AspNetCore.Http.RequestDelegate, Microsoft.AspNetCore.Hosting.IHostingEnvironment, Microsoft.Extensions.Options.IOptions`1<Microsoft.AspNetCore.Builder.StaticFileOptions>, Microsoft.Extensions.Logging.ILoggerFactory)'.
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.CreateStaticFileMiddleware(RequestDelegate next, IHostingEnvironment hostingEnv, ILoggerFactory loggerFactory, SwaggerUIOptions options)
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware..ctor(RequestDelegate next, IHostingEnvironment hostingEnv, ILoggerFactory loggerFactory, SwaggerUIOptions options)
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Microsoft.Extensions.Internal.ActivatorUtilities.ConstructorMatcher.CreateInstance(IServiceProvider provider)
   at Microsoft.Extensions.Internal.ActivatorUtilities.CreateInstance(IServiceProvider provider, Type instanceType, Object[] parameters)
   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass4_0.<UseMiddleware>b__0(RequestDelegate next)
   at Microsoft.AspNetCore.Builder.ApplicationBuilder.Build()
   at Microsoft.AspNetCore.Hosting.WebHost.BuildApplication()
The thread 0x3a08 has exited with code 0 (0x0).
Exception thrown: 'System.MissingMethodException' in System.Private.CoreLib.dll
An unhandled exception of type 'System.MissingMethodException' occurred in System.Private.CoreLib.dll
Method not found: 'Void Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware..ctor(Microsoft.AspNetCore.Http.RequestDelegate, Microsoft.AspNetCore.Hosting.IHostingEnvironment, Microsoft.Extensions.Options.IOptions`1<Microsoft.AspNetCore.Builder.StaticFileOptions>, Microsoft.Extensions.Logging.ILoggerFactory)'.

Does 4.0.1 support asp.net.core 3.1?

[vpaulino]

same error here. must update to v5.0.0-rc5 ( the latest rc works for me ) and add UseStaticFiles.

public void ConfigureServices(IServiceCollection services)
        {
          // configure your applicationi container here then add services as required

            services.AddControllers();
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "My Api API", Version = "v1" });
                var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
                var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
                if (File.Exists(xmlPath))
                {
                    c.IncludeXmlComments(xmlPath);
                }
            });
        }

public void Configure(IApplicationBuilder app)
        {
            app.UseStaticFiles();
            app.UseSwagger();

            // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
            // specifying the Swagger JSON endpoint.
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
            });

            app.UseRouting();
            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }

[fairking]

I cannot use 5.0 as there is no implementation of filterContext.SchemaRegistry.GetOrRegister(type); in IDocumentFilter.
I tried schemaRepository.GetOrAdd(type, type.Name, () => new OpenApiSchema() { Type = type.Name }) but I could not figure out how to use it. It registers types with no properties.

So I stuck with v4 at the moment. Would be nice to have v4 compatible with .net core 3.1 as v5 of swagger is a big mess as I can see the source code so I am not going to use it. This is completely different swagger. The entire api has changed.

Update: We need a good test and I am currently working on that.

[kylepope-ge]

@denis-pujdak-adm-it - I think you might be able to get it to work via this, which will add it to the schemaRepository:

context.SchemaGenerator.GenerateSchema(type, context.SchemaRepository);

[domaindrivendev]

Also worth noting - this is all described under "Breaking Changes" in the 5.0.0-rc5 release notes:
https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases/tag/v5.0.0-rc5

Now, if you need to leverage the schema generator within a filter, it should be invoked as follows:

var schema = context.SchemaGenerator.GenerateSchema(typeof(CustomType), context.SchemaRepository);

[fairking]

@domaindrivendev @kylepope-ge Thanks for your help guys. But I ended up with the issue #1452 . Swagger does not generate a schema properly. Very simple example shows it is not working. I got stuck with v4 at the moment.

[onlifevineesh]

Try 5.0.0-rc2

Thank you so much @domaindrivendev. Been struggling with this issue after I upgraded my asp.net core solution to .net 5.0. Installing "Swashbuckle.AspNetCore -Version 5.0.0-rc2" fixed it. However neither rc3 nor rc4 worked for me!!.