Question

VHDL语言 Max+Plus II编译报错

Error：Unknown problem in +文件路径+ （%dls-f-nullarg,null list item arguement to value.）

源文件：
LIBRARY ieee;
USE ieee.std_logic_1164.all;
USE ieee.std_logic_unsigned.all;
ENTITY count10 IS
PORT(EN,LD,RD,CLK:INSTD_LOGIC;
D0,D1,D2,D3:INSTD_LOGIC;
C:OUTSTD_LOGIC;
Q0,Q1,Q2,Q3:BUFFERSTD_LOGIC);
END count10;
ARCHITECTURE counttry OF count10 IS
BEGIN
PROCESS(EN,LD,RD,CLK,D0,D1,D2,D3)
BEGIN
IF RD='0' THENQ0<='0';Q1<='0';Q2<='0';Q3<='0';
ELSE IF LD='0' THENQ0<=D0;Q1<=D1;Q2<=D2;Q3<=D3;
ELSE IF RISING_EDGE(CLK) AND CLK='1' THEN
IF Q0='0' THEN Q0<='1';
ELSE IF Q1='0' THEN Q0<='0';Q1<='1';
ELSE IF Q2='0' THEN Q0<='0';Q1<='0';Q2<='1';
ELSE IF Q3='0' THEN Q0<='0';Q1<='0';Q2<='0';Q3<='1';
ELSE Q0<='0';Q1<='0';Q2<='0';Q3<='0';C<='1';
END IF;
END IF;
END IF;
END IF;
END IF;
END IF;
END IF;
END PROCESS;
END counttry;

Answer 1

看下你的工程路径是否包含中文