This morning everything was working fine and all of a sudden it throws this error as below
../../../hal/src/photon/lib/STM32F2xx_Peripheral_Libraries.a(stm32f2xx_flash.o): In function
FLASH_Unlock': 1> /Users/mat1/dev/spark/photon-wiced/WICED/platform/MCU/STM32F2xx/peripherals/libraries/src/stm32f2xx_flash.c:317: undefined reference to
__flash_acquire'
1> ../../../hal/src/photon/lib/STM32F2xx_Peripheral_Libraries.a(stm32f2xx_flash.o): In functionFLASH_Lock': 1> /Users/mat1/dev/spark/photon-wiced/WICED/platform/MCU/STM32F2xx/peripherals/libraries/src/stm32f2xx_flash.c:335: undefined reference to
__flash_release'
1>collect2 : error : ld returned 1 exit status