Comparing integer and integer array element not working

[Niels F. S. Vistisen]

Trying to execute the lines:

integer i = 5;
integer array newIntArray = [i-4, i-3, i-2, i-1, i, i+1];

while(i <= newIntArray[5]) repeat {
     i = i + 1;
     console.print(i);
}

the following error appear:

E1: Illegal type conversion: Cannot compare integer with integer (TYPE_ERROR) on line 174
Line 174 being the while condition.