Can't create Function

[datnt97]

I try to create a function in AspNetCore.OData 8.0.6.

Edm model

builder.EntitySet<CategoryViewModel>("PCategories");
var category = builder.StructuralTypes.FirstOrDefault(t => t.ClrType == typeof(CategoryViewModel));
category.AddProperty(typeof(CategoryViewModel).GetProperty(nameof(CategoryViewModel.NiceUrl)));  // Add readonly property
builder.EntityType<CategoryViewModel>()
	.Collection
	.Function("GetChildren")
	.ReturnsCollectionFromEntitySet<CategoryViewModel>("PCategories")
	.Parameter<Guid>("ParentId");

Controller

//[EnableQuery(PageSize = 10, AllowedQueryOptions = AllowedQueryOptions.All)]
//[Route("odata_products/PCategories({parentId})/GetChildren")]
[HttpGet]
public async Task<IActionResult> GetChildren(ODataActionParameters parameters /*Guid parentId*/)
{
	Guid parentId = (Guid)parameters["parentId"];
	var categories = await _categoryService.QueryEntitiesAsync();
	return Ok(categories);
}

• Postman show an error when I call https://localhost:44300/odata_products/PCategories/GetChildren(ParentId=24b10d32-1888-21e4-9c69-199726d467ff):
  

• $odata not show anythings :((
  

• Swagger show:
  

• What am I wrong here?

[datnt97]

I figured out my problem. The method QueryEntitiesAsync return incorrectly type.
But $odata still doesn't display anything