Memory Pool Error

[mbahmani90]

Hi,
Hope you are all well.

I want to create a memory pool:

#define MY_POOL_SIZE 1024
#define MY_POOL_BLOCK_SIZE 32

K_MEM_POOL_DEFINE(my_pool, MY_POOL_BLOCK_SIZE, MY_POOL_SIZE, 4, 4);

but I receive error:

error: expected ')' before numeric constant
   30 | K_MEM_POOL_DEFINE(my_pool, MY_POOL_BLOCK_SIZE, MY_POOL_SIZE, 4, 4);
      |                           ^
      |                           )
[12/124] Building C object zephyr/CMak...hyr.dir/lib/os/cbprintf_packaged.c.obj
ninja: build stopped: subcommand failed.

prj.conf:

CONFIG_HEAP_MEM_POOL_SIZE=1024
CONFIG_KERNEL_MEM_POOL=y

Do you know where I am making mistake?