you need to get the addons that the person that programmed it used.
I always store an .installation-config file alongside the project.
If you have lost that, then it gets a bit of a headache:
I think even with SP18 you can hit yes to open it anyway, and it will suggest which addons it thinks are missing, if you double click the yellow "missing-addons" in the status bar.
If you know you have the right addons, you can do a "Save As.." and it will write your current addon list to the file, and you wont get the error next time.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
What does CODESYS expect me to do when I get such an error message:
Last edit: DavidBo 2024-01-08
I've had the same with SP19 patch 2
I can't help you I'm afraid.
you need to get the addons that the person that programmed it used.
I always store an .installation-config file alongside the project.
If you have lost that, then it gets a bit of a headache:
I think even with SP18 you can hit yes to open it anyway, and it will suggest which addons it thinks are missing, if you double click the yellow "missing-addons" in the status bar.
If you know you have the right addons, you can do a "Save As.." and it will write your current addon list to the file, and you wont get the error next time.