With that configuration and the error logging that got added in 2.5.0-SNAPSHOT it indeed shows it can’t install the mqtt1 binding:
21:08:06.420 [ERROR] [.core.karaf.internal.FeatureInstaller] - Failed installing 'openhab-binding-mqtt1'
21:09:05.885 [ERROR] [.core.karaf.internal.FeatureInstaller] - Failed installing 'openhab-binding-mqtt1'
You can enable the legacy bindings in Paper UI as well.
See: MQTT Binding 2.4 - what changed? not working anymore - #8 by job.
That will add some additional lines to the addons.config file:
legacy=B"true"
remote=B"true"
It’s OK:
openhab> feature:list|grep fritz
openhab-binding-avmfritz │ 2.5.0.SNAPSHOT │ │ Uninstalled │ openhab-addons-2.5.0-SNAPSHOT │ AVM FRITZ!Box Binding
openhab-binding-fritzbox1 │ 1.14.0.SNAPSHOT │ │ Uninstalled │ openhab-addons-2.5.0-SNAPSHOT │ Fritzbox Binding
openhab-binding-fritzboxtr0641 │ 1.14.0.SNAPSHOT │ x │ Started │ openhab-addons-2.5.0-SNAPSHOT │ Fritzbox TR064 Binding