Error: C:/Modeltech_6.2e/examples/last_matching1.vhd(282): Cannot resolve indexed nam

[Omar Hegazy]

error with my vhdl code

Hello,
i have the following error with my code:

# ** Error: C:/Modeltech_6.2e/examples/last_matching1.vhd(282): Cannot resolve indexed name as type std.standard.integer.

this is line 282:
w <= xaxis18(s);

where,
xaxis18 is an array of integer with length of 26 elements.
s is a pointer for the xaxis18 array and it is defined as integer signal with range 0 to 26.
w is an integer signal

signal w : integer :=0;
signal s : integer range 0 to 26 :=0;
type array_type31 is array (0 to 25) of integer;
signal xaxis18 : array_type31:=(others => 0);

I'm using these packages and library:
library ieee;
use ieee.std_logic_1164.all;
use IEEE.STD_LOGIC_UNSIGNED.all;
use std.textio.all;
use work.txt_util.all;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.numeric_std.ALL;

help please

 

[TrickyDicky]

first of all, dont use std_logic_arith and numeric_std in the same file. Only use numeric_std (they have clashing types, and std_logic_arith is non-standard)

Secondly, I cant see whats wrong without the actual code. Please post the code in context.

 

[Omar Hegazy]

Thank you for your concern.
I knew the problem and fixed it.
I wanted to add something that you information about combining arith & numeric in the same file is correct information and i've seen it in many resources, but my project works with this situation fine which made me astonished.
Thank you again

 

[TrickyDicky]

That will be because you're not using the signed and unsigned types. If you needed to, you wouldnt be able to because both std_logic_arith and numeric_std define the types, so you wouldnt be able to use either because of the conflict.

 

[electronical]

Thank you for your concern.
I knew the problem and fixed it.
I wanted to add something that you information about combining arith & numeric in the same file is correct information and i've seen it in many resources, but my project works with this situation fine which made me astonished.
Thank you again :)

Hi.
I have the same error. how can you resolve it ,and why this is happened?