C# IdentityServer3升级到.NET Framework 4.7错误-“；提供的RSA密钥无效"；

我们正在尝试将IdentityServer3实例从目标.NET Framework 4.5升级到4.7，但在运行时遇到以下异常

错误似乎是由于缺少OWIN中间件应该创建的cookie而发生的，尽管我们不能完全确定

System.InvalidOperationException: ID6041: The provided RSA key is invalid.

   at System.IdentityModel.RsaEncryptionCookieTransform.Encode(Byte[] value)

   at IdentityServer3.Core.Configuration.X509CertificateDataProtector.Protect(Byte[] data, String entropy) in c:\local\identity\server3\IdentityServer3\source\Core\Configuration\X509CertificateDataProtector.cs:line 48

   at IdentityServer3.Core.Extensions.IDataProtectorExtensions.Protect(IDataProtector protector, String data, String entropy) in c:\local\identity\server3\IdentityServer3\source\Core\Extensions\IDataProtectorExtensions.cs:line 38

   at IdentityServer3.Core.Configuration.Hosting.MessageCookie`1.Protect(IDataProtector protector, TMessage message) in c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\MessageCookie.cs:line 73

   at IdentityServer3.Core.Configuration.Hosting.MessageCookie`1.Protect(TMessage message) in c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\MessageCookie.cs:line 118

   at IdentityServer3.Core.Configuration.Hosting.MessageCookie`1.Write(TMessage message) in c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\MessageCookie.cs:line 142

   at IdentityServer3.Core.Extensions.OwinEnvironmentExtensions.CreateSignInRequest(IDictionary`2 env, SignInMessage message) in c:\local\identity\server3\IdentityServer3\source\Core\Extensions\OwinEnvironmentExtensions.cs:line 138

   at IdentityServer3.Core.Results.LoginResult.Execute() in c:\local\identity\server3\IdentityServer3\source\Core\Results\LoginResult.cs:line 57

   at IdentityServer3.Core.Results.LoginResult.ExecuteAsync(CancellationToken cancellationToken) in c:\local\identity\server3\IdentityServer3\source\Core\Results\LoginResult.cs:line 48

   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext() in c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\ClientListCookie.cs:line 

System.InvalidOperationException:ID6041:提供的RSA密钥无效。
在System.IdentityModel.RsaEncryptionCookieTransform.Encode（字节[]值）处
在c:\local\identity\server3\IdentityServer3\source\Core\Configuration\X509CertificateDataProtector.Protect中的IdentityServer3.Core.Configuration.X509CertificateDataProtector.Protect（字节[]数据，字符串熵）处：第48行
在c:\local\identity\server3\IdentityServer3\source\Core\Extensions\IDataProtectorExtensions.Protect（IDataProtectorProtector，字符串数据，字符串熵）中的IdentityServer3.Core.Extensions.IDataProtectorExtensions.Protect（IDataProtectorProtector，字符串数据，字符串熵）：第38行
在c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\MessageCookie.cs中的IdentityServer3.Core.Configuration.Hosting.MessageCookie`1.Protect（IDataProtector protector，TMessage message message）中：第73行
在c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\MessageCookie.cs中的IdentityServer3.Core.Configuration.Hosting.MessageCookie`1.Protect（TMessage message message）中
在IdentityServer3.Core.Configuration.Hosting.MessageCookie`1.Write（TMessage message）中，使用c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\MessageCookie.cs:第142行
在c:\local\identity\server3\IdentityServer3\source\Core\Extensions\owinevironmentextensions.CreateSignInRequest（IDictionary`2 env，SignInMessage message）中的IdentityServer3.Core.Extensions.owineVironExtensions.CreateSignInRequest（IDictionary`2 env，SignInMessage message）处：第138行
在c:\local\identity\server3\IdentityServer3\source\Core\Results\LoginResult.cs中的IdentityServer3.Core.Results.LoginResult.Execute（）处：第57行
在c:\local\identity\server3\IdentityServer3\source\Core\Results\LoginResult.ExecuteAsync（CancellationToken CancellationToken）中的IdentityServer3.Core.Results.LoginResult.ExecuteAsync（CancellationToken CancellationToken）：第48行
在c:\local\identity\server3\IdentityServer3\source\Core\Configuration\Hosting\ClientListCookie.cs中的System.Web.Http.Controllers.ApiControllerActionInvoker.d\u 0.MoveNext（）处

您是否解决了此问题？