How to run template code on other board series ?

Hi, I'm new at STM32.
I have a board Stm32F303RE and I want to upload a template code I have just downloaded. But this code was buit and uploaded on Stm32F401RE so I couldn't upload this code on my board. Keil V alert that " one or more device family pack devices are not present ". So How can I solve this problem ? Any comments will be appreciated <3 thank you

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