20:30:32 **** Incremental Build of configuration Debug for project myUART ****
make all
'Building target: myUART.elf'
'Invoking: MCU G++ Linker'
arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -specs=nosys.specs -specs=nano.specs -T"C:\Users\Top\Desktop\STM32\stm32test\myUART\STM32F411RETx_FLASH.ld" -Wl,-Map=output.map -Wl,--gc-sections -fno-exceptions -fno-rtti -lm -o "myUART.elf" @"objects.list"
Src/stm32f4xx_hal_msp.o: In function `HAL_UART_MspInit':
C:\Users\Top\Desktop\STM32\stm32test\myUART\Debug/../Src/stm32f4xx_hal_msp.c:115: undefined reference to `Error_Handler'
C:\Users\Top\Desktop\STM32\stm32test\myUART\Debug/../Src/stm32f4xx_hal_msp.c:132: undefined reference to `Error_Handler'
collect2.exe: error: ld returned 1 exit status
make: *** [myUART.elf] Error 1
20:30:32 Build Finished (took 418ms)