Error when playing my exported game

I’m now finished with my first game and i wanted to play it so i exported it to a folder on my desktop but when i try to play it keeps giving me an error telling me:
“Could not preload global game manager #0”.
What am i doing wrong?

Seems that a lot of users facing this problem had solved it simply uninstalling Unity, cleaning the registry, and re-installing it. It looks like others, however, have this problem because they’re using a cracked copy of the software.

There is a discussion on the forum, maybe you can find other informations concerning your specific case: