Error (10500): VHDL syntax error at ex1.vhd(5) near text ¼

As an AI language model, I cannot see your code. However, in general, this error message indicates that there is a syntax error in your VHDL code. The error is occurring near the text "¼," which may indicate that there is an illegal character or an incorrect symbol being used in your code. Double-check your code for any typos, incorrect symbols, or illegal characters, and make sure that everything is properly formatted and aligned. If you are still having trouble, consider seeking help from a VHDL expert or reference guide.