Not compile for AT90CAN

[EarlVadim]

Hello. I tried to compile the "Recieve CAN Messages" example for AT90CAN board and got errors

C:\Users\VADIM\AppData\Local\Temp\arduino_build_445438\sketch\ReceiveCANMessages.ino.cpp.o: In function `CAN_AT90CAN::begin(unsigned long)':
C:\Users\VADIM\Documents\Arduino\libraries\CAN_Library-master/CAN_AT90CAN.h:180: undefined reference to `CAN_AT90CAN::begin(unsigned long, unsigned char)'
C:\Users\VADIM\AppData\Local\Temp\arduino_build_445438\sketch\ReceiveCANMessages.ino.cpp.o: In function `readMessage()':
C:\Users\VADIM\AppData\Local\Temp\arduino_modified_sketch_693090/ReceiveCANMessages.ino:50: undefined reference to `CAN_AT90CAN::available()'
C:\Users\VADIM\AppData\Local\Temp\arduino_modified_sketch_693090/ReceiveCANMessages.ino:52: undefined reference to `CAN_AT90CAN::read()'
C:\Users\VADIM\AppData\Local\Temp\arduino_build_445438\libraries\CAN_Library-master\CAN_AT90CAN.cpp.o: In function `CAN_AT90CAN::CAN_AT90CAN()':
C:\Users\VADIM\Documents\Arduino\libraries\CAN_Library-master/CAN_AT90CAN.cpp:73: undefined reference to `vtable for CAN_AT90CAN'
C:\Users\VADIM\Documents\Arduino\libraries\CAN_Library-master/CAN_AT90CAN.cpp:73: undefined reference to `vtable for CAN_AT90CAN'
collect2.exe: error: ld returned 1 exit status

What I can do for fix it?