UDP example ("UdpServer.ino") do not compile - IDE 1.6.5 R2

[EGNBR]

Compiler output C:\Users\EGN\AppData\Local\Temp\build5593042996246348312.tmp\ARD.cpp.o: In function __static_initialization_and_destruction_0': C:\Program Files (x86)\Arduino/ARD.ino:19: undefined reference toUIPUDP::UIPUDP()' C:\Users\EGN\AppData\Local\Temp\build5593042996246348312.tmp\ARD.cpp.o: In function setup': C:\Program Files (x86)\Arduino/ARD.ino:29: undefined reference toUIPUDP::begin(unsigned int)' C:\Users\EGN\AppData\Local\Temp\build5593042996246348312.tmp\ARD.cpp.o: In function loop': C:\Program Files (x86)\Arduino/ARD.ino:39: undefined reference toUIPUDP::parsePacket()' C:\Program Files (x86)\Arduino/ARD.ino:41: undefined reference to UIPUDP::available()' C:\Program Files (x86)\Arduino/ARD.ino:52: undefined reference toUIPUDP::flush()' C:\Program Files (x86)\Arduino/ARD.ino:58: undefined reference to UIPUDP::remoteIP()' C:\Program Files (x86)\Arduino/ARD.ino:60: undefined reference toUIPUDP::remotePort()' C:\Program Files (x86)\Arduino/ARD.ino:64: undefined reference to UIPUDP::remotePort()' C:\Program Files (x86)\Arduino/ARD.ino:64: undefined reference toUIPUDP::remoteIP()' C:\Program Files (x86)\Arduino/ARD.ino:64: undefined reference to UIPUDP::beginPacket(IPAddress, unsigned int)' C:\Program Files (x86)\Arduino/ARD.ino:78: undefined reference toUIPUDP::endPacket()' C:\Program Files (x86)\Arduino/ARD.ino:83: undefined reference to UIPUDP::stop()' C:\Program Files (x86)\Arduino/ARD.ino:86: undefined reference toUIPUDP::begin(unsigned int)' collect2.exe: error: ld returned 1 exit status Error compiling.