In file included from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_def.h:30,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rcc.h:29,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/STM32F4xx/stm32f4xx_hal_conf_default.h:291,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/STM32F4xx/stm32f4xx_hal_conf.h:13,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal.h:30,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/Drivers/CMSIS/Device/ST/STM32F4xx/Include/stm32f4xx.h:252,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/stm32_def.h:35,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/clock.h:43,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/wiring_time.h:23,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/wiring.h:38,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/Arduino.h:32,
                 from sketch\Blink.ino.cpp:1:
 #ifndef __STM32F4xx_H
 
In file included from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/stm32_def.h:35,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/clock.h:43,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/wiring_time.h:23,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/wiring.h:38,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/Arduino.h:32,
                 from sketch\Blink.ino.cpp:1:
 #ifndef __STM32F4xx_H
 
In file included from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rtc.h:29,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/LL/stm32yyxx_ll_rtc.h:21,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/backup.h:26,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/board.h:9,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/wiring.h:41,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/Arduino.h:32,
                 from sketch\Blink.ino.cpp:1:
 #ifndef __STM32F4xx_H
 
In file included from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_gpio.h:29,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/LL/stm32yyxx_ll_gpio.h:21,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/stm32/digital_io.h:43,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/board.h:12,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/wiring.h:41,
                 from C:\Users\TG\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.6.1\cores\arduino/Arduino.h:32,
                 from sketch\Blink.ino.cpp:1:
 #ifndef __STM32F4xx_H
 
exit status 1
processing.app.debug.RunnerException
	at cc.arduino.Compiler.lambda$callArduinoBuilder$3(Compiler.java:309)
	at processing.app.debug.MessageSiphon.run(MessageSiphon.java:96)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
	at cc.arduino.Compiler.message(Compiler.java:525)
	at cc.arduino.i18n.I18NAwareMessageConsumer.message(I18NAwareMessageConsumer.java:80)
	at cc.arduino.MessageConsumerOutputStream.flush(MessageConsumerOutputStream.java:71)
	at cc.arduino.MessageConsumerOutputStream.write(MessageConsumerOutputStream.java:54)
	at java.io.OutputStream.write(OutputStream.java:75)
	at cc.arduino.Compiler.lambda$callArduinoBuilder$3(Compiler.java:307)
	... 2 more