conflicting declaration 'typedef uint8_t boolean'

[paulzuurbier]

This library won't compile but:
'In fact after commenting out //typedef uint8_t boolean; from servoTimer2.h I do not have the problem'
See:
http://forum.arduino.cc/index.php?topic=303063.new#new

[Kugelschieber]

Same goes for the boolean declaration:

In file included from sketch/rc_car_receiver.ino.cpp:1:0:
/root/.arduino15/packages/arduino/hardware/avr/1.6.16/cores/arduino/Arduino.h:125:14: note: previous declaration as 'typedef bool boolean'
typedef bool boolean;