错误107无法隐式转换类型'System.Collections.Generic.List <anonymoustype＃1>

Question

错误107无法将类型'System.Collections.Generic.List'隐式转换为'System.Collections.Generic.IEnumerable'。存在显式转换（您是否错过了演员？）

enter code here
              public IEnumerable<TempProductCart> Get()
    {
        IEnumerable<TempProductCart> q = rep.Get();
        var a= q.Select(x => new
         {
             x.Product.Name,
             x.ProductID,
             x.User.Username,
             x.ProductQty
         }).ToList();

        return a;


    }