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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 my brain for hours trying to find a solution as I can't work on my project if the code won't even build. Thank you.