I DID BUT I FOUND UTTERLY UNRELATED INFORMATION, also, Quit yelling and using the big red bold text.
Shesh, What a welcome to the forum. :?
Then you did something wrong.
I just clicked on search in the "menu"-bar at the top, then inserted "invalid compiler [YOUR ANSWER IS ALREADY THERE. SEARCH THE FORUMS!]" in the text-box, clicked find and the first found topic gives you all information you need.
http://forums.codeblocks.org/index.php?action=search2&search=invalid+compilerAnd if it's not the first, you might have to scroll through and look for something that helps.
It's the same, if you search on google or any other search-engine.
The answer you need might sometimes not be the first (even if it is in this case).
Look:
if all the people with the same problem would have searched before posting, the amount of locked topics flooding the search results would be much smaller.
The cause oBFusCATed seems to be so harsh is, that it's annoying to answer th esame questions over and over again.
By the way:
The amount of questions about the same topic, should probaly lead to a warning/error-message that gives more hints what might have gone wrong.