我有以下架构:
architecture datapath of DE2_TOP is
begin
U1: entity work.lab1 port map (
clock => clock_50,
key => key,
hex6 => hex6,
hex5 => hex5,
hex4 => hex4
);
end datapath;
我收到以下错误:Error (10481): VHDL Use Clause error at DE2_TOP.vhd(276): design library "work" does not contain primary unit "lab1"
在线:U1: entity work.lab1 port map (
。有谁知道这是什么原因造成的?