How to activate KNX1 Binding after migration to Pi 4

[mikeww1]

I migrated from a Pi Zero to a Pi4 running at 2.5.12. I did a backup and a restore on the new system using the backup tool provided. Everything looks good but the KNX1 Binding (the jar file) did not come with the restore. Now I have the situation that my openhab is thinking it has the Binding installed but cannot find the jar file. When I compare the file structure of the old installation and the new installation I find that a lot has changed. Now my question: where shall I put the KNX1 jar file ?
At the moment I get an error message
2022-01-13 11:11:23.987 [ERROR] [core.karaf.internal.FeatureInstaller] - Failed installing 'openhab-binding-knx1

[rossko57]

@mikeww1

Now my question: where shall I put the KNX1 jar file ?

In your /addons folder.

You’ll still get the message until you remove the entry from your addons.cfg text file

The reason it can’t download KNX1 is -

openHAB 2.5.x and the sunset of Bintray

All, The sunset of Bintray on May 1st caused existing openHAB 2.5.x installations to no longer be able to download add-ons from the remote repository (because this was actually Bintray). The original plan was to move this content to another place and offer a seamless switch for the users, but unfortunately this turned out to be more complicated than thought, so that it didn’t work out - at least until now. There are two options to fix the problem, though: Use the offline version of the add-…

[mstormi (Markus Storm)]

Nowhere. openhab v1 bindings such as yours no longer work in OH3.
Use the current KNX binding. You will have to migrate your KNX config for that.

[mikeww1]

Thank you for the replies. I am currently on 2.5. Migration from KNX1 to KNX2 binding will follow, but the hardware migration is enough to do at the moment. I could solve the issue but I had to manually install a dependency neccessary for KNX1 via the Karaf console.
The command:
bundle:install -s wrap:mvn:commons-collections/commons-collections/3.2.2
did the trick.