Button Move to Position

I want to create a button, which moves the cnc to a predefined (absolute) position.

Here is what I did in my config (which is in /home/cnc/linuxcnc/configs/my-machine):

ini:
custom_post_gui.hal
pyvcp-panel.xml
In the folder /home/cnc/linuxcnc/subroutines I created a file o100.ngc:
When I run the machine, there is a (new) button, but when I click it, I always receive the following error:

EOF in file:/usr/share/axis/images/axis.ngc
seeking o-word: o<100> from line:0

I'm fiddling around with this issue for a while already and searched the forum but can't find the problem. I think the paths are all correct?! Maybe somebody can point me in the right direction! Thanks in advance!

In your ini, there is a trap :

[DISPLAY]
PROGRAM_PREFIX = /home/grotius/linuxcnc-grotius/configs/sim/grotius/nc_files/
# the program prefix is also for placing the subroutine's O-files. Beware of the / sign.
So place a / at the end....

in every ngc file you can do : o<subroutine> call

your subroutine file (subroutine.ngc) starts with code : o<subroutine> sub
ends with code :
o<subroutine> endsub
M2

Good luck !!

Thanks! My issue was not the path, but the fact that I named my subroutine files o100.ngc instead of 100.ngc. I set the subroutine_path as a absolute path, so the program_prefix does not affect the subroutine path.