The navigation on entity type has not been added to the model, or ignored, or entityType ignored
The navigation 'Tags' on entity type 'Notepad.Models.Note' has not been added to the model, or ignored, or entityType ignored. public class Note { public Note() { CreationDate = DateTime.Now; Tags = new HashSet<Tag>(); Parts = new HashSet<Part>(); } public int ID { get; set; } public virtual ICollection<Tag> Tags { get; set; } public virtual ICollection<Part> Parts { get; set; } public DateTime? CreationDate { get; set; } } public class Tag { public Tag() { Notes = new HashSet<Note>(); } public int ID { get; set; } public string Name { get; set; } public virtual ICollection<Note> Notes { get;