error can't find component

Hi,I need some help as I can't seem to figure out what I broke.  I've been working on my toolchanger.comp and now after running:
sudo halcompile --install toolchanger.comp in terminal and getting the following:

Compiling realtime toolchanger.c
Linking toolchanger.so
cp toolchanger.so /usr/lib/linuxcnc/modules/

I can't run Linuxcnc and get an error:
HAL: ERROR: function 'toolchanger' not found
./Emco-Compact5-2021.hal:25: addf failed

This is happening on all my previous files too that used to work?  any ideas?  The comp file is defined as a singleton, and as I said, none of the versions I have from previously work..attached are my ini, hal, comp and the error report

this is probably due to the missing line in your toolchanger.comp

see  linuxcnc.org/docs/html/hal/comp.html

thanks - that fixed that error.