SeedStudio Wifly Shield

I already download it and extract it to arduino/libraries
but it says :
“The library “Wifi_Shield_Master” cannot be used. Library names must contain only basic letters and numbers. (ASCII only and no spaces, it cannot start with a number)”

and when i’m trying to compile one of the example (ex:wifly_ap) it says “WiFly does not name a type”
can you help me please T.T