Error: called object type 'int' is not a function or function pointer

Hi, i'm new to Keil uVision and i've tried to make a uart program following a course, but i'm encountering this error. Btw i followed the exact steps as the professor on the course did but the error stays.

This is what i wrote: 

Error: called object type 'int' is not a function or function pointer   -     this appears when i put the mouse on the X.

I've browsed on internet for a while and read that it has to do with the configuration in Options for Target. Btw i'm using version 5.36.0 of uVision.

And this is my configuration: 

Thanks in advance.

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