BQ Hephestos fail with Arduino 1.8.8 and Marlin 1.1.X

Sorry my bad english.
Im installed a headed Bed in my BQ 3D Printer. I made a Update as .hex
Since the Update the Printer makes me crazy ! I had to change the Marlin with Arduino. I comes every time the same fail : stdlib.h

Arduino: 1.8.8 (Windows 7), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Wurzelsepp\Documents\Arduino\libraries -fqbn=arduino:avr:mega:cpu=atmega2560 -ide-version=10808 -build-path C:\Users\WURZEL~1\AppData\Local\Temp\arduino_build_733079 -warnings=none -build-cache C:\Users\WURZEL~1\AppData\Local\Temp\arduino_cache_546079 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avr-gcc.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\5.4.0-atmel3.6.1-arduino2 -prefs=runtime.tools.avr-gcc-5.4.0-atmel3.6.1-arduino2.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\5.4.0-atmel3.6.1-arduino2 -prefs=runtime.tools.arduinoOTA.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.2.1 -prefs=runtime.tools.arduinoOTA-1.2.1.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.2.1 -prefs=runtime.tools.avrdude.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino14 -prefs=runtime.tools.avrdude-6.3.0-arduino14.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino14 -verbose C:\Users\WURZEL~1\AppData\Local\Temp\untitled767046009.tmp\sketch_mar06a\sketch_mar06a.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Wurzelsepp\Documents\Arduino\libraries -fqbn=arduino:avr:mega:cpu=atmega2560 -ide-version=10808 -build-path C:\Users\WURZEL~1\AppData\Local\Temp\arduino_build_733079 -warnings=none -build-cache C:\Users\WURZEL~1\AppData\Local\Temp\arduino_cache_546079 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avr-gcc.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\5.4.0-atmel3.6.1-arduino2 -prefs=runtime.tools.avr-gcc-5.4.0-atmel3.6.1-arduino2.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\5.4.0-atmel3.6.1-arduino2 -prefs=runtime.tools.arduinoOTA.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.2.1 -prefs=runtime.tools.arduinoOTA-1.2.1.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.2.1 -prefs=runtime.tools.avrdude.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino14 -prefs=runtime.tools.avrdude-6.3.0-arduino14.path=C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino14 -verbose C:\Users\WURZEL~1\AppData\Local\Temp\untitled767046009.tmp\sketch_mar06a\sketch_mar06a.ino
Using board 'mega' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr
Using core 'arduino' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr
Detecting libraries used...
"C:\Users\Wurzelsepp\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\5.4.0-atmel3.6.1-arduino2/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10808 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino" "-IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\mega" "C:\Users\WURZEL~1\AppData\Local\Temp\arduino_build_733079\sketch\sketch_mar06a.ino.cpp" -o nul
In file included from C:\Users\WURZEL~1\AppData\Local\Temp\arduino_build_733079\sketch\sketch_mar06a.ino.cpp:1:0:

C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:23:20: fatal error: stdlib.h: No such file or directory

compilation terminated.

exit status 1
Fehler beim Kompilieren für das Board Arduino/Genuino Mega or Mega 2560.

Can you help me please ?

Please do this:

• File > New
• Sketch > Verify/Compile

Do you get the same error message as when you try to compile Marlin?

Yes ...
I had tryd it once and once again !
I had flash arduino und intall it again . Every time the same error message

We have now managed to play Arduino. However, I have no success. My display on the 3D printer still shows nothing. Is there a way to test if the Arduino works?

The Arduio is a atMega 2560