UI does not load after restore 2.2 config on 2.3 release

Tags: #<Tag:0x00007f8322683ba0> #<Tag:0x00007f8322683ad8> #<Tag:0x00007f8322683a10>
  • Platform information:
    • Hardware: Raspberry Pi 3 with Razpberry Z-Wave board
    • OS: OpenHABian image 1.4.0
    • openHAB version: 2.3.0
  • Issue of the topic: After restoring the backup from 2.2 (running on raspbian, same hardware), the UI’s are not working anymore. The Paper UI was running before the restore.

The log shows the following lines and a couple more with similar errors:

2018-06-04 21:50:52.027 [INFO ] [.dashboard.internal.DashboardService] - Stopped Dashboard
2018-06-04 22:09:57.054 [ERROR] [ternal.service.BootFeaturesInstaller] - Error installing boot features
org.apache.karaf.features.internal.util.MultiException: Error:
	Error downloading mvn:org.apache.karaf.deployer/deployer/4.1.3-sp1
	Error downloading mvn:org.jline/jline/3.5.1-sp1
	at org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:84) ~[?:?]
	at org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72) ~[?:?]
	at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:375) ~[?:?]
	at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:372) ~[?:?]
	at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:187) ~[?:?]
	at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:291) ~[?:?]
	at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:287) ~[?:?]
	at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1248) ~[?:?]
	at org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$1(FeaturesServiceImpl.java:1147) ~[?:?]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
	at java.lang.Thread.run(Thread.java:748) [?:?]

Try Clear the Cache

Thanks for the tip.

The clues to fix it I found in removing files after restore and in remove and install openhab2.

After applying both recommendations, the UI was coming back finally!
Cheers
Thomas