Can someone help and explain please

I get this message when trying to play animation in browser:

WARNINGS: ** 36 Bitmaps packed successfully into 2 spritesheet(s). Frame numbers in EaselJS start at 0 instead of 1. For example, this affects gotoAndStop and gotoAndPlay calls. (36) Motion tweens are published as frame by frame animations. Use classic tweens where possible. (7)

I've read that this genrally means nothing is wrong but how do i fix this? It still won't let me play my animation in my browser.