problem with type matching

entity wvt is

generic(

data_width: integer := 8;

image_size: integer := 32;

addr_width: integer := 262144

);

port(

clk :in std_logic;

wvt_rst :in std_logic;

start_up :in std_logic;

fwvt_iwvt :in std_logic;

finished_wvt :buffer std_logic;

data_a :in std_logic_vector(data_width downto 0);

data_b :in std_logic_vector(data_width downto 0);

addr_1 :buffer integer range 0 to addr_width;

addr_2 :buffer integer range 0 to addr_width;

data_1 :out std_logic_vector(data_width downto 0);

we_1 :out std_logic;

data_2 :out std_logic_vector(data_width downto 0);

we_2 :out std_logic;

xread_write_flag: out std_logic;

--xtemp_mem1: onedmem((image_size/2-1) downto 0);

--xtemp_mem2: onedmem((image_size/2-1) downto 0);

xcol_write: out integer range 0 to image_size;

xrow_write: out integer range 0 to image_size;

xcol_read: out integer range 0 to image_size;

xrow_read: out integer range 0 to image_size;

xstart_up_hold: out std_logic;

xrow_col_switch: out std_logic;

xstate: out integer range 0 to 4;

xtemp1: out ieee.numeric_std.unsigned((data_width + 1) downto 0);

xtemp2: out ieee.numeric_std.signed((data_width + 1) downto 0);

xtemp3: out ieee.numeric_std.signed((data_width + 1) downto 0)

);

end entity;