Could not load file or assembly 'Microsoft.IdentityModel.Protocols.WsFederation,

11,413

try installing this package via

Nuget Install-Package Microsoft.IdentityModel.Protocols.WsFederation -Version 5.2.0.0 
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Luis Valencia
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Luis Valencia

Updated on June 15, 2022

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  • Luis Valencia
    Luis Valencia over 1 year

    I am having this error ONLY after I added the assembly line on the startup.cs

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using Microsoft.Owin;
    using Owin;
    
    [assembly: OwinStartupAttribute(typeof(InnovationInABoxWebApi.App_Start.Startup))]
    namespace InnovationInABoxWebApi.App_Start
    {
        public partial class Startup
        {
            public void Configuration(IAppBuilder app)
            {
                ConfigureAuth(app);
            }
        }
    }
    

    this is package.json

    <?xml version="1.0" encoding="utf-8"?>
    <packages>
      <package id="Antlr" version="3.4.1.9004" targetFramework="net45" />
      <package id="bootstrap" version="3.0.0" targetFramework="net45" />
      <package id="jQuery" version="1.10.2" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights" version="2.2.0" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights.Agent.Intercept" version="2.0.6" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights.DependencyCollector" version="2.2.0" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights.PerfCounterCollector" version="2.2.0" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights.Web" version="2.2.0" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights.WindowsServer" version="2.2.0" targetFramework="net45" />
      <package id="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel" version="2.2.0" targetFramework="net45" />
      <package id="Microsoft.AspNet.Cors" version="5.2.5" targetFramework="net451" />
      <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net45" />
      <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net45" />
      <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net45" />
      <package id="Microsoft.AspNet.WebApi" version="5.2.3" targetFramework="net45" />
      <package id="Microsoft.AspNet.WebApi.Client" version="5.2.5" targetFramework="net451" />
      <package id="Microsoft.AspNet.WebApi.Core" version="5.2.5" targetFramework="net451" />
      <package id="Microsoft.AspNet.WebApi.Cors" version="5.2.5" targetFramework="net451" />
      <package id="Microsoft.AspNet.WebApi.HelpPage" version="5.2.3" targetFramework="net45" />
      <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net45" />
      <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net45" />
      <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.8" targetFramework="net45" />
      <package id="Microsoft.IdentityModel.Logging" version="5.2.1" targetFramework="net451" />
      <package id="Microsoft.IdentityModel.Tokens" version="5.2.1" targetFramework="net451" />
      <package id="Microsoft.Net.Compilers" version="1.3.2" targetFramework="net45" developmentDependency="true" />
      <package id="Microsoft.Owin" version="4.0.0" targetFramework="net451" />
      <package id="Microsoft.Owin.Host.SystemWeb" version="4.0.0" targetFramework="net451" />
      <package id="Microsoft.Owin.Security" version="4.0.0" targetFramework="net451" />
      <package id="Microsoft.Owin.Security.ActiveDirectory" version="4.0.0" targetFramework="net451" />
      <package id="Microsoft.Owin.Security.Jwt" version="4.0.0" targetFramework="net451" />
      <package id="Microsoft.Owin.Security.OAuth" version="4.0.0" targetFramework="net451" />
      <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
      <package id="Modernizr" version="2.6.2" targetFramework="net45" />
      <package id="Newtonsoft.Json" version="10.0.1" targetFramework="net451" />
      <package id="Owin" version="1.0" targetFramework="net451" />
      <package id="Respond" version="1.2.0" targetFramework="net45" />
      <package id="System.IdentityModel.Tokens.Jwt" version="5.2.1" targetFramework="net451" />
      <package id="WebGrease" version="1.5.2" targetFramework="net45" />
    </packages>
    

    Full error

    Could not load file or assembly 'Microsoft.IdentityModel.Protocols.WsFederation, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. 
      Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
    
     Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.IdentityModel.Protocols.WsFederation, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
    
    Source Error: 
    
    
     An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  
    
    Assembly Load Trace: The following information can be helpful to determine why the assembly 'Microsoft.IdentityModel.Protocols.WsFederation, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.
    
    
    
    WRN: Assembly binding logging is turned OFF.
    To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
    Note: There is some performance penalty associated with assembly bind failure logging.
    To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
    
    
    
    Stack Trace: 
    
    
    
    [FileNotFoundException: Could not load file or assembly 'Microsoft.IdentityModel.Protocols.WsFederation, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
       Microsoft.Owin.Security.ActiveDirectory.WsFedMetadataRetriever.GetSigningKeys(String metadataEndpoint, TimeSpan backchannelTimeout, HttpMessageHandler backchannelHttpHandler) +0
       Microsoft.Owin.Security.ActiveDirectory.WsFedCachingSecurityKeyProvider.RetrieveMetadata() +146
       Microsoft.Owin.Security.ActiveDirectory.WsFedCachingSecurityKeyProvider..ctor(String metadataEndpoint, ICertificateValidator backchannelCertificateValidator, TimeSpan backchannelTimeout, HttpMessageHandler backchannelHttpHandler) +296
       Owin.WindowsAzureActiveDirectoryBearerAuthenticationExtensions.UseWindowsAzureActiveDirectoryBearerAuthentication(IAppBuilder app, WindowsAzureActiveDirectoryBearerAuthenticationOptions options) +163
       InnovationInABoxWebApi.App_Start.Startup.ConfigureAuth(IAppBuilder app) in C:\Users\valencil\source\repos\InnovationInABoxWebApi2\InnovationInABoxWebApi\App_Start\Startup.Auth.cs:15
       InnovationInABoxWebApi.App_Start.Startup.Configuration(IAppBuilder app) in C:\Users\valencil\source\repos\InnovationInABoxWebApi2\InnovationInABoxWebApi\Startup.cs:15
    
    • Sujit.Warrier
      Sujit.Warrier over 5 years
      try installing this package via Nuget Install-Package Microsoft.IdentityModel.Protocols.WsFederation -Version 5.2.0.0
    • Luis Valencia
      Luis Valencia over 5 years
      thanks that worked
    • Luis Valencia
      Luis Valencia over 5 years
      add it as an answer to accept it
  • Rod
    Rod over 5 years
    I'm having the same problems as @Luis Valencia had. I've installed the NuGet package Microsoft.IdentityModel.Protocols.WsFederation as you recommended. But it hasn't fixed my problem. The weird thing is that this project had been working fine just this morning. Now it isn't.
  • BillVo
    BillVo over 5 years
    @Rod: Same here.. Please confirm in Package Manager Console that you've set your default project then repeat the Install-Package command.
  • Rod
    Rod over 5 years
    @BillVo, odd thing happened for me. Even though I had a problem after installing Microsoft.IdentityModel.Protocols.WsFederation back on June 5, the next day I could work with it fine. I don't understand why that made a difference, but since I couldn't duplicate the problem, I just went with it as it was.
  • chase huber
    chase huber about 5 years
    this is now: Nuget install Microsoft.IdentityModel.Protocols.WsFederation -Version 5.2.0.0