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c# - AspNetCore Could not load type 'Swashbuckle.AspNetCore.SwaggerGen.SwaggerResponseAttribute'

问题描述

I have ASP.NET Core Web application where I am using swagger using the following:

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc();
    services.AddSwaggerGen(c =>
    {
        c.OperationFilter<ExamplesOperationFilter>();
        c.OperationFilter<DescriptionOperationFilter>();
        c.SwaggerDoc("v1", new Info
        {
            Version = "v1",
            Title = "API",
            Description = "",
        });
        // Set the comments path for the Swagger JSON and UI.
        var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
        var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
        c.IncludeXmlComments(xmlPath);
    });
}


public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    app.UseSwagger();
    app.UseSwaggerUI(c => { c.SwaggerEndpoint("/swagger/v1/swagger.json", "API"); });
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    app.UseMvc();
}

When I navigate to url/swagger I am getting the following error:

fail: Microsoft.AspNetCore.Server.Kestrel[13] Connection id "0HLG1T7PRT05H", Request id: An unhandled exception was thrown by the application. System.TypeLoadException: Could not load type 'Swashbuckle.AspNetCore.SwaggerGen.SwaggerResponseAttribute' from assembly 'Swashbuckle.AspNetCore.SwaggerGen, Version=3.0.0.0, Culture=neutral'.at Swashbuckle.AspNetCore.Examples.DescriptionOperationFilter.SetResponseModelDescriptions(Operation operation, ISchemaRegistry schemaRegistry, ApiDescription apiDescription) at Swashbuckle.AspNetCore.Examples.DescriptionOperationFilter.Apply(Operation operation, OperationFilterContext context) at Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreateOperation(ApiDescription apiDescription, ISchemaRegistry schemaRegistry) at Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreatePathItem(IEnumerable1 apiDescriptions, ISchemaRegistry schemaRegistry) at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable1 source, Func2 keySelector, Func2 elementSelector, IEqualityComparer1 comparer) at Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreatePathItems(IEnumerable1 apiDescriptions, ISchemaRegistry schemaRegistry) at Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.GetSwagger(String documentName, String host, String basePath, String[] schemes) at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)

The nuget packages I installed are:

Swashbuckle.AspNetCore v3.0.0

Swashbuckle.AspNetCore.Examples v2.9.0

标签： c#asp.net-coreswagger

解决方案

卸载软件包

Swashbuckle.AspNetCore.Examples

应该解决这个问题。新包装是（还没有尝试过）-

Swashbuckle.AspNetCore.Filters

（更新） 新包工作得很好

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