Foreach problem

[Tim M]

Why is this an error. Dmd wants to make sure that I declare a new variable  
in the foreach statement and not use an existing one?

module test;

void main()
{
        int i;
        int[] nums;
        foreach(i; nums)
        {
                //
        }
}


dmd test.d

test.d(7): Error: shadowing declaration test.main.i is deprecated