I have a licky icon but when i try to put it as my icon its says the image was not valid image! Please help!!

There are two reasons about this…

Reason 1: How much is your image's size? If it's more than 1 MB, it doesn't work.
Reason 2: What is your image's format? If it's not PNG or GIF, it doesn't work.

I hope I helped you a lot.
~samanyolu

GIF is an animated photo. vid is not. You need gif.

define gif
forever
 wait (0.01) secs
next costume
end

when green flag clicked
forever
gif
end

I got it thanks!