Local repository

I have downloaded all structure and files as it is from https://dl.bintray.com/openhab/mvn/online-repo/2.3/

and placed to my local directory and access it as virtual directory using IIS config. My url is http://localhost/piot/mvn/online-repo/2.3@id=openhab

then I open file userdata/etc/org.ops4j.pax.url.mvn.cfg
And change config like below
org.ops4j.pax.url.mvn.repositories=
http://localhost/piot/mvn/online-repo/2.3@id=openhab

And after that I have start fresh openhab-2.3.0

In log he gave me bwlow warning

Could not validate integrity of download from http://localhost/piot/mvn/online-repo/2.3/org/openhab/core/org.openhab.ui.paperui/2.3.0/org.openhab.ui.paperui-2.3.0.jar: Checksum validation failed, no checksums available

And after that it started paperui. Then i try to install MQTT persistence from paperui addons

Then he gave me warning and errors

2018-10-01 16:57:59.714 [WARN ] [her.internal.impl.WarnChecksumPolicy] - Could not validate integrity of download from http://localhost/piot/mvn/online-repo/2.3/org/openhab/persistence/org.openhab.persistence.mqtt/1.12.0/org.openhab.persistence.mqtt-1.12.0.jar: Checksum validation failed, no checksums available

2018-10-01 16:57:59.730 [WARN ] [her.internal.impl.WarnChecksumPolicy] - Could not validate integrity of download from http://localhost/piot/mvn/online-repo/2.3/org/openhab/io/org.openhab.io.transport.mqtt/1.12.0/org.openhab.io.transport.mqtt-1.12.0.jar: Checksum validation failed, no checksums available

2018-10-01 16:58:00.946 [ERROR] [core.karaf.internal.FeatureInstaller] - Failed installing ‘openhab-persistence-mqtt’: Error resolving artifact org.openhab.addons:openhab-addons-external:cfg:mqtt:1.12.0: [Could not find artifact org.openhab.addons:openhab-addons-external:cfg:mqtt:1.12.0 in defaultlocal (file:/C:/OPENHA~1.3-F/userdata/tmp/mvn/), Could not find artifact org.openhab.addons:openhab-addons-external:cfg:mqtt:1.12.0 in openhab (http://localhost/piot/mvn/online-repo/2.3/)]

Can you tell me how to resolved it or how can i configure my local repository.