How to implement 'InvalidOperationException' when using Entity Framework Core with ASP.NET Core 5.0?
I've been struggling with this for a few days now and could really use some help. I'm working with an `InvalidOperationException` with the message 'The instance of entity type 'MyEntity' want to be tracked because another instance with the same key value for {'Id'} is already being tracked.' This occurs when I'm trying to update an entity in my ASP.NET Core 5.0 application using Entity Framework Core. Here's a snippet of my `UpdateEntity` method: ```csharp public async Task<IActionResult> UpdateEntity(int id, MyEntity updatedEntity) { if (id != updatedEntity.Id) { return BadRequest(); } _context.Entry(updatedEntity).State = EntityState.Modified; await _context.SaveChangesAsync(); return NoContent(); } ``` I have also tried using `_context.Update(updatedEntity)` instead of setting the state manually, but I still face the same scenario. In my controller, I'm retrieving the entity like this: ```csharp var entity = await _context.MyEntities.FindAsync(id); if (entity == null) { return NotFound(); } // Here I update some fields entity.Name = updatedEntity.Name; entity.Description = updatedEntity.Description; ``` After making changes, I pass `updatedEntity` to the `UpdateEntity` method, and the exception is thrown when I call `SaveChangesAsync()`. I've ensured that I'm not inadvertently modifying or passing the same entity instance multiple times in a single request, and I’m managing my DbContext correctly. I’ve reviewed the documentation and couldn't find a solution. Can anyone guide to understand why this tracking scenario is happening and how to properly update an entity without getting this behavior? Any ideas what could be causing this? This is part of a larger application I'm building. Any ideas what could be causing this?