Installing my.openhab on Openhab 2

I wanted to install my.OpenHab on my openhab 2,0 installation.

on the raspberry PI where Openhab is installed, I had a DNS server (PowerDNS) installed

I think that to install openhab, the etc/resolv.conf is change din the process of installing my.openhab
is this correct?

(It was changed recently, and they only thing I can think I did, was trying to install my.openhab.

anyway, the change failed, and give this log file
Error resolving artifactorg.openhab.io:org.openhab.io.myopenhab:jar:2.0.0.b3:Could not find artifact org.openhab.io:org.openhab.io.myopenhab:jar:2.0.0.b3 in esh-release-repo (https://repo.eclipse.org/content/repositories/releases/)
shaded.org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.openhab.io:org.openhab.io.myopenhab:jar:2.0.0.b3 in esh-release-repo (https://repo.eclipse.org/content/repositories/releases/)
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:294)[4:org.ops4j.pax.url.mvn:2.4.5]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:615)[4:org.ops4j.pax.url.mvn:2.4.5]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:570)[4:org.ops4j.pax.url.mvn:2.4.5]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:548)[4:org.ops4j.pax.url.mvn:2.4.5]
at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:523)[4:org.ops4j.pax.url.mvn:2.4.5]
at org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:34)[9:org.apache.karaf.features.core:4.0.4]
at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:58)[9:org.apache.karaf.features.core:4.0.4]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_65]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_65]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)[:1.8.0_65]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.8.0_65]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_65]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_65]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_65]
Caused by: shaded.org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.openhab.io:org.openhab.io.myopenhab:jar:2.0.0.b3 in esh-release-repo (https://repo.eclipse.org/content/repositories/releases/)
at shaded.org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:39)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:355)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:581)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:249)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)[4:org.ops4j.pax.url.mvn:2.4.5]
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)[4:org.ops4j.pax.url.mvn:2.4.5]