How can I fix serialization errors in ASP.NET MVC?

I'm encountering serialization errors in my ASP.NET MVC application. What should I do?

Serialization errors often occur due to issues with data types or circular references. Can you provide more details about the error?

The error message says there's a circular reference in my model.

You can resolve circular references by using the [JsonIgnore] attribute on properties that cause the loop, or by configuring your JSON serializer settings.

How do I configure the JSON serializer settings?

You can configure the JSON serializer in the Startup.cs file by modifying the AddJsonOptions method in the ConfigureServices method.

Can you show me an example of how to do that?

Sure! Here's a sample code snippet:

services.AddControllers().AddJsonOptions(options => {
    options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.Preserve;
});