This is probably not the full text of the error...
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Please correct your post above and add code tags around your code:
[code]`` [color=blue]// your code is here[/color] ``[/code].
It should look like this:// your code is here
(Also press ctrl-T (PC) or cmd-T (Mac) in the IDE before copying to indent your code properly)
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Have you ever seen something like this anywhere?
if()
{
digitalRead (BOTTON==HIGH);
....