Variable i

Hi,

I am using this script for particle simulation

for (i = 0; i < 10; i++) {

    particleEmitter.Simulate(1.0);

}

Now, in unity, I get

BCE0005: Unknown identifier: ‘i’.

I know this should be obvious, but do I have to define i?

for (var i = 0; i < 10; i++) {