(vcom -11) could not find work.std_logic_arith.

[abu9022]

Hi friends
I have some error while give the below command
code:

do compile.do

Errors

 ** Warning: (vlib-34) Library already exists at "work".
# ** Error: (vcom-11) Could not find work.std_logic_arith.
# ** Error: iu.vhd(29): (vcom-1195) Cannot find expanded name "work.std_logic_arith".
# ** Error: iu.vhd(29): Unknown expanded name.
# ** Error: (vcom-11) Could not find work.std_logic_unsigned.
# ** Error: iu.vhd(33): (vcom-1195) Cannot find expanded name "work.std_logic_unsigned".
# ** Error: iu.vhd(33): Unknown expanded name.
# ** Error: (vcom-11) Could not find work.std_logic_unsigned.
# ** Error: iu.vhd(34): (vcom-1195) Cannot find expanded name "work.std_logic_unsigned".
# ** Error: iu.vhd(34): Unknown expanded name.
# ** Error: (vcom-11) Could not find work.std_logic_unsigned.
# ** Error: iu.vhd(35): (vcom-1195) Cannot find expanded name "work.std_logic_unsigned".
# ** Error: iu.vhd(35): Unknown expanded name.
# ** Error: iu.vhd(45): VHDL Compiler exiting
# ** Error: /mnt/iscsi/mgc/AMS/questasim/v6.4c/linux/vcom failed.
# Error in macro ./compile.bat line 47
# /mnt/iscsi/mgc/AMS/questasim/v6.4c/linux/vcom failed.
#     while executing
# "vcom -quiet  iu.vhd "

I checked in work directory, there is no file work.std_logic_arith, work.std_logic_unsigned, is it possible to create the files?

can anybody help me how to solve this error

 

[rahul.achates]

Defining those library will not resolve the issue.

Are you using some specific function from the library ? try to compile with commenting out the library ..

or remove work directory and then compile all vhd files. which simulator you are using ? Is it trial version ?

Rahul

 

[ads-ee]

Those libraries are in IEEE not your work library. They are also depricated in favor of IEEE.numeric_std.

Regards