調用AddAuthorization不明確

有幾個簡單的政策，直到今天一直在努力，我敢肯定，我沒有做任何事情來打破它們。在Startup.cs，在ConfigureServices，這是拋出一個錯誤代碼：調用AddAuthorization不明確

services.AddAuthorization(options => 
     { 
      options.AddPolicy("AboveUser", 
       policy => policy.RequireRole("Admin", "Manager")); 
      options.AddPolicy("IsAdmin", 
       policy => policy.RequireRole("Admin")); 
      options.AddPolicy("IsManager", 
       policy => policy.RequireRole("Manager")); 
     });

它給了我這個錯誤的AddAuthorization功能：

The call is ambiguous between the following methods or properties: 'Microsoft.Extensions.DependencyInjection.AuthorizationServiceCollectionExtensions.AddAuthorization(Microsoft.Extensions.DependencyInjection.IServiceCollection, System.Action)' and 'Microsoft.Extensions.DependencyInjection.AuthorizationServiceCollectionExtensions.AddAuthorization(Microsoft.Extensions.DependencyInjection.IServiceCollection, System.Action)'

我不記得最近製作改變我的project.json之類的東西，但如果這能幫助我在這裏引用它：

{ 

"dependencies": { 
"Microsoft.AspNetCore.Razor.Tools": { 
    "version": "1.0.0-preview2-final", 
    "type": "build" 
}, 
"Microsoft.EntityFrameworkCore.Tools": { 
    "version": "1.0.0-preview2-final", 
    "type": "build" 
}, 
"Microsoft.VisualStudio.Web.CodeGeneration.Tools": { 
    "version": "1.0.0-preview2-final", 
    "type": "build" 
}, 
"Microsoft.VisualStudio.Web.CodeGenerators.Mvc": { 
    "version": "1.0.0-preview2-final", 
    "type": "build" 
}, 
"BundlerMinifier.Core": "2.2.306", 
"Microsoft.ApplicationInsights.AspNetCore": "2.0.0", 
"Microsoft.AspNetCore.Authentication.Cookies": "1.1.0", 
"Microsoft.AspNetCore.Diagnostics": "1.1.0", 
"Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.1.0", 
"Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.1.0", 
"Microsoft.AspNetCore.Mvc": "1.1.0", 
"Microsoft.AspNetCore.Routing": "1.1.0", 
"Microsoft.AspNetCore.Server.IISIntegration": "1.1.0", 
"Microsoft.AspNetCore.Server.Kestrel": "1.1.0", 
"Microsoft.AspNetCore.StaticFiles": "1.1.0", 
"Microsoft.EntityFrameworkCore.SqlServer": "1.1.0", 
"Microsoft.EntityFrameworkCore.SqlServer.Design": "1.1.0", 
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.0", 
"Microsoft.Extensions.Configuration.Json": "1.1.0", 
"Microsoft.Extensions.Configuration.UserSecrets": "1.1.0", 
"Microsoft.Extensions.Logging": "1.1.0", 
"Microsoft.Extensions.Logging.Console": "1.1.0", 
"Microsoft.Extensions.Logging.Debug": "1.1.0", 
"Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.0", 
"Microsoft.NETCore.App": "1.1.0", 
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0", 
"Microsoft.EntityFrameworkCore": "1.1.0", 
"Microsoft.AspNet.Mvc.Core": "6.0.0-*", 
"Microsoft.Extensions.DependencyInjection.Abstractions": "1.1.0" 
}, 

"tools": { 
"Microsoft.AspNetCore.Razor.Tools": "1.0.0-preview2-final", 
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final", 
"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final", 
"Microsoft.Extensions.SecretManager.Tools": "1.0.0-preview2-final", 
"Microsoft.VisualStudio.Web.CodeGeneration.Tools": { 
    "version": "1.0.0-preview2-final", 
    "imports": [ 
    "portable-net45+win8" 
    ] 
} 
}, 

"frameworks": { 
"netcoreapp1.0": { 
    "imports": [ 
    "dotnet5.6", 
    "portable-net45+win8" 
    ] 
} 
}, 

"buildOptions": { 
"emitEntryPoint": true, 
"preserveCompilationContext": true 
}, 

"runtimeOptions": { 
"configProperties": { 
    "System.GC.Server": true 
} 
}, 
"runtimes": { 
"win7-x64": { } 
}, 

"publishOptions": { 
"include": [ 
    "wwwroot", 
    "**/*.cshtml", 
    "appsettings.json", 
    "web.config" 
] 
}, 

"scripts": { 
"prepublish": [ "bower install", "dotnet bundle" ], 
"postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% - -framework %publish:FullTargetFramework%" ] 
} 
}

任何援助將不勝感激

來源

2017-02-07 Omega575

不要將beta/rc版本與RTM混合！

"Microsoft.AspNet.Mvc.Core": "6.0.0-*",

這是

"Microsoft.AspNetCore.Mvc.Core": "1.1.0",

來源

2017-02-07 23:30:19 Tseng

謝謝，我想我需要一個額外的一雙眼睛 – Omega575

調用AddAuthorization不明確

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