Lambda Expression - Error Cannot implicitly convert type `vicoapi.Pictures' to `System.Collections.Generic.List<vicoapi.Pictures>' (CS0029) - mysql

Question

Hello Together following my Code:
public class SampleData : DropCreateDatabaseIfModelChanges<VicoTvEntities>
{
protected override void Seed(VicoTvEntities context)
{
var pictures = new List<Pictures>{
new Pictures { Name = "Testbild", Url="localhost/test" }
};
var user = new List<User>{
new User{Username="Muster", Password="Pass",Email="max.muster#mustermail.com",Bio="Musterbiografie", Pictures = pictures.Find(pic => pic.Name == "Testbild")}
};
}
}
}
I try to build an API and at the moment, I work on the connection of the DB to the code. I'm following this tutorial: https://www.asp.net/mvc/overview/older-versions/mvc-music-store/mvc-music-store-part-4
My Problem is, whenever I try to add the Picture it won't work, because of this converting error. How can I avoid this problem and implement the picture to the User.
My Source Tree looks like this:
Source Tree
The User Class looks as following:
public class User
{
public int IdUser { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public string Email { get; set; }
public string Bio { get; set; }
public List<Pictures> Pictures { get; set; }
public List<Follow> Following { get; set; }
public List<Follow> Followed { get; set; }
}
The Error I get looks like this:
/Users/username/vicotv-Backend/vicoapi/vicoapi/Models/SampleData.cs(126,126): Error CS0029: Cannot implicitly convert type `vicoapi.Pictures'to System.Collections.Generic.List' (CS0029) (vicoapi)

Answer 1

Although you don't show the class here, I'm fairly certain that your User class has a property defined something like this:
public List<Pictures> Pictures { get; set; }
If that is the case, you need to assign the property to the whole list like this:
user.Pictures = pictures
If you want a user to only be able to have one picture then you need to define the Picture property on the User class like this:
public Pictures Picture { get; set; }
If you define the Picture property like this it should work with your current code.
P.S. I would definitely recommend renaming your "Pictures" class to "Picture". In general you should use the singular form for class names. Have a look at this page for more information.