Error (10327): VHDL error at test.vhd(24): can't determine definition of operator "="

--- Quote Start ---

well you better tell us what you want to do with Q and Q_1.

you can just say:

Q_1(0) := Q(0);

--- Quote End ---

sorry for not making it clear. what i wanted to do was to assign the 0th index of Q to Q_1.

Q_1:= Q(0);

thank you for your time :)