Keil uVision Error L6218E: Undefined Symbol APBPrescTable (referred from stm32f4xx_hal_rcc.o)

I'm new to uVision for a University project and since trying to get my code to build on my PC at home I get this error with any code I try to compile. Anyone know any way to fix this? I've been racking...
Keil uVision Error L6218E: Undefined Symbol APBPrescTable (referred from stm32f4xx_hal_rcc.o)

I'm new to uVision for a University project and since trying to get my code to build on my PC at home I get this error with any code I try to compile. Anyone know any way to fix this? I've been racking...
Error l6218e undefined symbol (referred from main.o)

Hi All, I am getting this error while compiling the main.c file for TI Stellaris LM4F120 using Keil. I know this error is basically when the header files cannot be found by the compiler correctly. Please...
Error l6218e undefined symbol (referred from main.o)

Hi All, I am getting this error while compiling the main.c file for TI Stellaris LM4F120 using Keil. I know this error is basically when the header files cannot be found by the compiler correctly. Please...
nRF51 Error: L6218E: Undefined symbol (referred from main.o)

Hello! I am having these errors when compiling and I have no idea on how to fix them: \nrf51422_xxac.axf: Error: L6218E: Undefined symbol custom_service_init (referred from main.o). \nrf51422_xxac...