Change The Character Encoding


I'm having some problems when i try to save my project in Eclipse. The error is because of the character encoding that is Cp1252 that is because i copyed the file from another that i have created in my Linux computer, then i cant save my file in Eclipse, but how i can solve this problem? But if is needed here is an screenshot of the error:
Encoding Error


Best Solution

from this mail thread-->

So I can reliably make the problem come and go using Preferences > C/C++ > Environment. There I set LANG to en_US.UTF-8 (what it was from cmd line environment) then the problem comes back when i launch from Finder. So launching from the command line, I can UNset it there (hit "Undefine" button for that env. variable which shows its value as !! ) to fix it.