using typeof for my genereic type parameter

I have this code snippet:

         foreach (var item in allClassesINeedList)
        {
            var genericMethod = temp.GetType().GetMethod("GenerateDocument").MakeGenericMethod(typeof(item));
            genericMethod.Invoke(temp, new object[] { item });
        }

It will give me:

"The type or namespace name 'item' could not be found (are you missing a using directive or an assembly reference?)"

My aim is to execute for every object in allClassesINeedList(its a List<object>) my generic method GenerateSingleDocument with every object in that list.

What did I do wrong ?