using System;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {
        List<string> list = new List<string>{ "1", "2", "3"};
        Utils utils = new Utils();
        utils.ChangeType(list, typeof(List<int>));
        Console.WriteLine("Done!");
    }
}

public class Utils
{
    public object ChangeType(object obj, Type type)
    {
         return Convert.ChangeType(obj, type);
    }
}

Run-time exception (line 19): Object must implement IConvertible.

Stack Trace:

    [System.InvalidCastException: Object must implement IConvertible.]
       at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
       at System.Convert.ChangeType(Object value, Type conversionType)
       at Utils.ChangeType(Object obj, Type type) :line 19
       at Program.Main() :line 10