[Bug] Could not load type 'ExceptionType' from assembly 'Microsoft.IdentityModel.Tokens

[pantonis]

Which version of Microsoft.IdentityModel are you using?
Note that to get help, you need to run the latest version.

8.1.2

Where is the issue?

• M.IM.JsonWebTokens
• M.IM.KeyVaultExtensions
• M.IM.Logging
• M.IM.ManagedKeyVaultSecurityKey
• M.IM.Protocols
• M.IM.Protocols.OpenIdConnect
• M.IM.Protocols.SignedHttpRequest
• M.IM.Protocols.WsFederation
• M.IM.TestExtensions
• M.IM.Tokens
• M.IM.Tokens.Saml
• M.IM.Validators
• M.IM.Xml
• S.IM.Tokens.Jwt
• Other (please describe)

After updating from 8.0.2 to 8.1.2 and when calling
services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies()); in ConfigureServices in Startup.cs we receive the following exception

Unable to load one or more of the requested types.
Could not load type 'ExceptionType' from assembly 'Microsoft.IdentityModel.Tokens, Version=8.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Could not load type 'Microsoft.IdentityModel.Tokens.InternalTokenValidationResult' from assembly 'Microsoft.IdentityModel.Tokens, Version=8.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
Could not load type 'Microsoft.IdentityModel.Tokens.InternalTokenValidationResult' from assembly 'Microsoft.IdentityModel.Tokens, Version=8.1.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.


   at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)
   at System.Reflection.RuntimeModule.GetTypes()
   at Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.<>c__DisplayClass12_1.<AddAutoMapperClasses>b__6(Assembly a)
   at System.Linq.Enumerable.SelectManySingleSelectorIterator`2.MoveNext()
   at Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.AddAutoMapperClasses(IServiceCollection services, Action`2 configAction, IEnumerable`1 assembliesToScan, ServiceLifetime serviceLifetime)
   at Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.AddAutoMapper(IServiceCollection services, Assembly[] assemblies)
   at MyService.Web.Web.Startup.ConfigureServices(IServiceCollection services) in C:\\Github\MyService\src\MyService.Web\Startup.cs:line 96

[pmaytak]

This may be related to #2888 in 8.1.2 which reverts a change in the previous version.

Can you verify that all IdentityModel.* packages are of the same version - 8.1.2 (or better 8.2.0)?

[pantonis]

I updated to latest 8.2.0 and still the same bug
Below you can find the version of IdentityModel.* packages

Microsoft.IdentityModel.Abstractions.dll => 8.2.0.51101
Microsoft.IdentityModel.JsonWebTokens.dll => 8.0.2.50822
Microsoft.IdentityModel.Logging.dll => 8.2.0.51101
Microsoft.IdentityModel.Protocols.dll => 7.1.2.41121
Microsoft.IdentityModel.Protocols.OpenIdConnect.dll => 7.1.2.41121
Microsoft.IdentityModel.Tokens.dll => 8.2.0.51101

[pantonis]

anyone?

[pmaytak]

In the case above JsonWebTokens version should match Tokens package version (8.2.0). Ideally all IdentityModel.* packages should be of the same version.

Seems like AddAutoMapper expects assemblies with AutoMapper profiles; so passing specific ones instead of loading all may prevent this issue.