StackOverflowException after upgrading from .Net 6 to .Net 8

Question

Hi,

I have upgraded 5 projects in my solution from .Net 6 to .Net 8 using upgrade assistant in Visual Studio.

When I run the solution, StackOverflowException is being thrown and Swagger is not loading. Looks like onchangetokenfired() method is being called many times resulting in infinite loop.

PFA Startup.cs.txt and Program.cs.txt

Please help in fixing this issue.

User's image

Answer

Hi,

CreateHostBuilder() pattern is the .net5 way. Since .net6, the default template has cancelled the Startup.cs` file and use `WebApplication.CreateBuilder like following:

var builder = WebApplication.CreateBuilder(args);
...
builder.Services.Add...
var app = builder.Build();
...
app.UseAuthorization();
...
app.Run();

It is not hard to migrate from the old pattern to new pattern. I also suggest you read this classic article talking about this https://andrewlock.net/exploring-dotnet-6-part-2-comparing-webapplicationbuilder-to-the-generic-host/

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StackOverflowException after upgrading from .Net 6 to .Net 8

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