Servo library doesn`t work

[bugparty]

I just "#include <Servo.h>", and compile.then arduino generate the following log:
C:\Program Files (x86)\Arduino\libraries\Servo\Servo.cpp: In function 'void initISR(timer16_Sequence_t)':
C:\Program Files (x86)\Arduino\libraries\Servo\Servo.cpp:159: error: 'TIFR1' was not declared in this scope
C:\Program Files (x86)\Arduino\libraries\Servo\Servo.cpp:160: error: 'TIMSK1' was not declared in this scope

[sudar]

Which processor are you using? And also does that support Timers?

[bugparty]

I am using atmega16a-pu,yes,it has three timers!

[sudar]

This is really strange. Can you post the full code that you are using and also can you tell me how have installed the arduino core.