The error is
PinChangeInt.h ... No such file or directory
windows : 10
eclipse : C/C++ eclipse
Arduino IDE
Building llkk
"C:/Users/Monaa_000/.arduinocdt/packages/arduino/tools/avr-gcc/4.9.2-atmel3.5.3-arduino2/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10608 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I"C:/Users/Monaa_000/.arduinocdt/packages/arduino/hardware/avr/1.6.15/cores/arduino" -I"C:/Users/Monaa_000/.arduinocdt/packages/arduino/hardware/avr/1.6.15/variants/standard" "../../../../Documents/Arduino/libraries/PinChangeInt/PinChangeInt.cpp" -o "project/../../Documents/Arduino/libraries/PinChangeInt/PinChangeInt.cpp.o"
../../../../Documents/Arduino/libraries/PinChangeInt/PinChangeInt.cpp:23:26: fatal error: PinChangeInt.h: No such file or directory
#include <PinChangeInt.h>
^
compilation terminated.
makefile:69: recipe for target 'project/../../Documents/Arduino/libraries/PinChangeInt/PinChangeInt.cpp.o' failed
make: *** [project/../../Documents/Arduino/libraries/PinChangeInt/PinChangeInt.cpp.o] Error 1