problem by vivado in Rom Extraction from file !

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
use std.textio.all;

entity My_Rom is
port(	iClk		:in std_logic;
		iAddr		:in std_logic_vector(9 downto 0);
		oData		:out std_logic_vector(15 downto 0)
	);

end My_Rom;

architecture Behavioral of My_Rom is

	type tRom is array (0 to 1023) of std_logic_vector(15 downto 0);

	impure function RomExtc (RomFileName : in string) return tRom is                                                   
		FILE RomFile     	: text is in RomFileName;                   
		variable L			: line;                                 
		variable RomData    : tRom;                                      
		variable iData    	: integer;                                      
		variable qData    	: integer;                                      
                                     
	begin  
		report "Making Mapping_Rom:";  
		-- for ii in tRom'range loop     
		for ii in 0 to 1023 loop   
			readline (RomFile, L); 		
			report "L: " & L.all;  
			iData:=0;
			read (L, iData); 
			report "iData= "&integer'image(iData);  
			RomData(ii):=conv_std_logic_vector(iData,16);
		end loop;       
		return RomData;                                                  
	end function;                                                

	constant cRom : tRom := RomExtc("Rom.coe");
	
	
	signal sAddr	:std_logic_vector(9 downto 0):=(others=>'0');
	signal sData	:std_logic_vector(15 downto 0):=(others=>'0');

begin
	
	process(iClk)
	begin
		if rising_edge(iCLk)then
			sAddr		<=iAddr;
			sData		<=cRom(conv_integer(unsigned(sAddr)));
		end if;--Clk Rising
	end process;
	-- sData		<=cRom(conv_integer(unsigned(sAddr)));
	oData	<=sData(15 downto 0);
end Behavioral;