Microsoft.AspNetCore.Hosting.Diagnostics[16] Request reached the end of the middleware pipeline without being handled by application code. Request path: GET [https://lists.awadwatt.com/oauthcallback](vscode-file://vscode-app/c:/Users/downe/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-sandbox/workbench/workbench.html), Response status code: 500 fail: Microsoft.AspNetCore.Server.Kestrel[13] Connection id "0HN3M3ANECSGQ", Request id "0HN3M3ANECSGQ:00000001": An unhandled exception was thrown by the application. System.InvalidOperationException: The exception handler configured on ExceptionHandlerOptions produced a 404 status response. This InvalidOperationException containing the original exception was thrown since this is often due to a misconfigured ExceptionHandlingPath. If the exception handler is expected to return 404 status responses then set AllowStatusCode404Response to true. ---> System.InvalidOperationException: Sequence contains more than one element. at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable1 asyncEnumerable, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable1 asyncEnumerable, CancellationToken cancellationToken) at Microsoft.AspNetCore.Identity.UserManager1.FindByEmailAsync(String email) at Program.<>c.<<<Main>$>b__0_38>d.MoveNext() in D:\repos\GeFeSLE-server\Program.cs:line 1698 --- End of stack trace from previous location --- at Microsoft.AspNetCore.Http.RequestDelegateFactory.ExecuteTaskResult[T](Task1 task, HttpContext httpContext) at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|7_0(Endpoint endpoint, Task requestTask, ILogger logger) at Program.<>c.<<$>b__0_10>d.MoveNext() in D:\repos\GeFeSLE-server\Program.cs:line 579 --- End of stack trace from previous location --- at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.g__Awaited|10_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task) --- End of inner exception stack trace --- at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.HandleException(HttpContext context, ExceptionDispatchInfo edi) at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.g__Awaited|10_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication1 application) info: Microsoft.AspNetCore.Hosting.Diagnostics[2] Request finished HTTP/1.1 GET https://lists.awadwatt.com/oauthcallback - 500 0 - 24.3395ms info: Microsoft.AspNetCore.Hosting.Diagnostics[16] Request reached the end of the middleware pipeline without being handled by application code. Request path: GET https://lists.awadwatt.com/oauthcallback, Response status code: 500`
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The error message indicates that the SingleOrDefaultAsync method in Entity Framework is throwing an InvalidOperationException because the sequence contains more than one element.
The SingleOrDefaultAsync method is expected to return a single element. It returns the default value (which is null for reference types) if the sequence is empty. However, if the sequence contains more than one element, it throws an InvalidOperationException.
The error is occurring in this line of your code:
await userManager.FindByEmailAsync(email)
The FindByEmailAsync method uses SingleOrDefaultAsync under the hood to find a user with the specified email. The error indicates that there are multiple users with the same email in your database.
To fix this issue, you need to ensure that each user has a unique email. You can do this by adding a unique constraint to the email column in your database. If you're using Entity Framework migrations, you can do this by adding the [Index(IsUnique = true)] attribute to the email property in your user entity class.
If you expect multiple users to have the same email and you want to retrieve all of them, you should use the Where method instead of SingleOrDefaultAsync. However, keep in mind that this might require changes in other parts of your code that use the FindByEmailAsync method, as this method is expected to return a single user.
Microsoft.AspNetCore.Hosting.Diagnostics[16] Request reached the end of the middleware pipeline without being handled by application code. Request path: GET [https://lists.awadwatt.com/oauthcallback](vscode-file://vscode-app/c:/Users/downe/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-sandbox/workbench/workbench.html), Response status code: 500 fail: Microsoft.AspNetCore.Server.Kestrel[13] Connection id "0HN3M3ANECSGQ", Request id "0HN3M3ANECSGQ:00000001": An unhandled exception was thrown by the application. System.InvalidOperationException: The exception handler configured on ExceptionHandlerOptions produced a 404 status response. This InvalidOperationException containing the original exception was thrown since this is often due to a misconfigured ExceptionHandlingPath. If the exception handler is expected to return 404 status responses then set AllowStatusCode404Response to true. ---> System.InvalidOperationException: Sequence contains more than one element. at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable1 asyncEnumerable, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable1 asyncEnumerable, CancellationToken cancellationToken) at Microsoft.AspNetCore.Identity.UserManager1.FindByEmailAsync(String email) at Program.<>c.<<<Main>$>b__0_38>d.MoveNext() in D:\repos\GeFeSLE-server\Program.cs:line 1698 --- End of stack trace from previous location --- at Microsoft.AspNetCore.Http.RequestDelegateFactory.ExecuteTaskResult[T](Task1 task, HttpContext httpContext) at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|7_0(Endpoint endpoint, Task requestTask, ILogger logger) at Program.<>c.<<$>b__0_10>d.MoveNext() in D:\repos\GeFeSLE-server\Program.cs:line 579 --- End of stack trace from previous location --- at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.g__Awaited|10_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task) --- End of inner exception stack trace --- at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.HandleException(HttpContext context, ExceptionDispatchInfo edi) at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.g__Awaited|10_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication1 application) info: Microsoft.AspNetCore.Hosting.Diagnostics[2] Request finished HTTP/1.1 GET https://lists.awadwatt.com/oauthcallback - 500 0 - 24.3395ms info: Microsoft.AspNetCore.Hosting.Diagnostics[16] Request reached the end of the middleware pipeline without being handled by application code. Request path: GET https://lists.awadwatt.com/oauthcallback, Response status code: 500`Copilot: