Dashboard Died after failed Authentication setup

PowerShell Universal
1

I tried setting up Azure AD auth through the GUI on a test dashboard.
Upon clicking “save” the form closed, and i got an “error” warning with no additional information.

Upon restarting my web server, I get a HTTP ERROR 500 on visiting.

in the “repository” logs I get:

2021-12-09 11:21:26.672 +01:00 [ERR] Connection id "0HMDQVME3PC1H", Request id "0HMDQVME3PC1H:00000003": An unhandled exception was thrown by the application.
System.NullReferenceException: Object reference not set to an instance of an object.
   at Universal.Server.Services.MyAuthenticationSchemeProvider.GetDefaultScheme(SchemeType type) in D:\a\universal\universal\src\Universal.Server\Services\AuthenticationSchemeProvider.cs:line 54
   at Universal.Server.Services.MyAuthenticationSchemeProvider.GetDefaultAuthenticateSchemeAsync() in D:\a\universal\universal\src\Universal.Server\Services\AuthenticationSchemeProvider.cs:line 60
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Server.IISIntegration.IISMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
2021-12-09 11:24:56.758 +01:00 [INF] User profile is available. Using 'C:\Users\S_PSU_Datacenter_P\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
2021-12-09 11:25:04.753 +01:00 [ERR] Connection id "0HMDQVOL7T9O4", Request id "0HMDQVOL7T9O4:00000002": An unhandled exception was thrown by the application.
System.NullReferenceException: Object reference not set to an instance of an object.
   at Universal.Server.Services.MyAuthenticationSchemeProvider.GetDefaultScheme(SchemeType type) in D:\a\universal\universal\src\Universal.Server\Services\AuthenticationSchemeProvider.cs:line 54
   at Universal.Server.Services.MyAuthenticationSchemeProvider.GetDefaultAuthenticateSchemeAsync() in D:\a\universal\universal\src\Universal.Server\Services\AuthenticationSchemeProvider.cs:line 60
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Server.IISIntegration.IISMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)

in the dashboard log i get:

[11:25:04 ERR] Connection id "0HMDQVOL7T9O4", Request id "0HMDQVOL7T9O4:00000002": An unhandled exception was thrown by the application.
System.NullReferenceException: Object reference not set to an instance of an object.
   at Universal.Server.Services.MyAuthenticationSchemeProvider.GetDefaultScheme(SchemeType type) in D:\a\universal\universal\src\Universal.Server\Services\AuthenticationSchemeProvider.cs:line 54
   at Universal.Server.Services.MyAuthenticationSchemeProvider.GetDefaultAuthenticateSchemeAsync() in D:\a\universal\universal\src\Universal.Server\Services\AuthenticationSchemeProvider.cs:line 60
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Server.IISIntegration.IISMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)

Deleting the authentication from Authentication.ps1 did nothing, neither did recycling the app-pool.

V2.5.5

2

Apparantly fixed by deleting Authentication.ps1 and restarting the IIS site.

hmm

3

Are do you have any other errors in the log about failure to read the authentication.ps1? It kind of seems like no auth providers were configured due to some error with the configuration.

4

As far as I can tell, those were the only recent entries.

very strange