VHDL Fixed point package with Quartus

Hello Tricky and thank you very much for your reply.

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First of all, I think you made an error:

type GMat is array (0 to 1, 0 to 1) of GMat;

shouldnt it be

type GMat is array (0 to 1, 0 to 1) of GVal;

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It is a typewriting mistake, sorry about that. Thanks for the correction.

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Have you tried a newer version?

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I only have this version right now.

For the code, I made this separate example and got the same error:

First, there is the types-package "IMG_Types.vhd".

library RealNum; -- Defined as a global library in the project settings, it refers to the location of the fixed_pkg
use RealNum.fixed_float_types.all;
use RealNum.fixed_pkg.all;
package IMG_Types is
subtype GVal is sfixed (1 downto -4);    --sfixed is a fixed-point type defined in the VHDL fixed-point package.
type GMat is array (0 to 1, 0 to 1) of GVal;
end package;

Second, there is the routines, constants, .. package "G_pkg.vhd"

library ieee;
use ieee.std_logic_1164.all;
library RealNum; -- Defined as global library in the project settings, it refers to the location of the fixed_pkg
use RealNum.fixed_float_types.all;
use RealNum.fixed_pkg.all;
library PKG; -- defined as a global library to refere to the location of the IMg_Types (the same of this package. work will suffice of course)
use PKg.IMG_Types.all;
package G_pkg is
constant GMTest: GMat:= ((to_sfixed(-1.5,2,-3),to_sfixed(-1.4,2,-3))  ,  (to_sfixed(-0.2,2,-3),to_sfixed(-0.5,2,-3)));
end package G_pkg; 

Finally there is the top-level entity

library ieee;
use ieee.std_logic_1164.all;
library PKG;
use PKG.IMG_Types.all;
use PKG.G_PKG.all;
entity FixedMat is
port(clk, reset : in std_logic;
	  fGab : out GVal
	  );
end FixedMat;
Architecture Exmp1Arc of FixedMat is
begin 
fGab <= GMTest(0,0);
end;