Error compiling for board

hello folks,

new arduino, total noob 

i setting first time , download software, arduino pluged laptop.

i tried execute code error when upload it, tips im doing wrong?

thanks alot

code: [select]


/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: winterrupts.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hooks.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wiring.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wiring_analog.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wiring_digital.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wiring_pulse.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wiring_shift.c.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: cdc.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hardwareserial.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hardwareserial0.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hardwareserial1.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hardwareserial2.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hardwareserial3.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: ipaddress.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: pluggableusb.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: print.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: stream.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: tone.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: usbcore.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wmath.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: wstring.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: abi.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: main.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: core/new.cpp.o: plugin needed handle lto object
/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ld: /users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so: error loading plugin: dlopen(/users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so, 2): symbol not found: _environ
  referenced from: /users/x80807013378080/desktop/arduino.app/contents/java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so
  expected in: /usr/lib/libsystem.b.dylib

collect2: error: ld returned 1 exit status
exit status 1
error compiling board arduino/genuino uno.

managed fix downgrading arduino software 1.5

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