[xwiki-users] Failure to install "Extension Repository Application" with Extension Manager

Hello, I'm trying to install the Extension Repository Application in my wiki, in order to test importing, updating, and installation of my own extension (before pushing it to xwiki.org) I'm on xwiki 4.1.4. When trying to install the ExRApp from extension manager, it fails to find a dependency (xwiki-platform-extension-repository-xwiki-server-api): "GET http://extensions.xwiki.org/xwiki/rest/repository/extensions/org.xwiki.plat… HTTP/1.1[\r][\n]" That seems normal since it's not published to the extension repository on xwiki.org. After that I suppose it tries the next configured repository (xwiki nexus) but that also fails: Could not find extension dependency [org.xwiki.platform:xwiki-platform-extension-repository-xwiki-server-api-4.1.4] in repository [maven-xwiki (http://nexus.xwiki.org/nexus/content/groups/public)] class org.xwiki.extension.ResolveException: Failed to resolve extension [org.xwiki.platform:xwiki-platform-extension-repository-xwiki-server-api-4.1.4] descriptor at org.xwiki.extension.repository.aether.internal.AetherExtensionRepository.resolveMaven(AetherExtensionRepository.java:317) at org.xwiki.extension.repository.aether.internal.AetherExtensionRepository.resolve(AetherExtensionRepository.java:168) at org.xwiki.extension.repository.internal.DefaultExtensionRepositoryManager.resolve(DefaultExtensionRepositoryManager.java:168) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.resolveExtension(AbstractInstallPlanJob.java:712) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.installExtension(AbstractInstallPlanJob.java:577) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.installExtensionDependency(AbstractInstallPlanJob.java:552) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.installExtension(AbstractInstallPlanJob.java:743) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.installExtension(AbstractInstallPlanJob.java:662) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.installExtension(AbstractInstallPlanJob.java:386) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.installExtension(AbstractInstallPlanJob.java:333) at org.xwiki.extension.job.internal.AbstractInstallPlanJob.start(AbstractInstallPlanJob.java:236) at org.xwiki.extension.job.internal.InstallPlanJob.start(InstallPlanJob.java:88) at org.xwiki.job.AbstractJob.start(AbstractJob.java:134) at org.xwiki.job.internal.DefaultJobManager.run(DefaultJobManager.java:156) at java.lang.Thread.run(Thread.java:619) Caused by: $throwable.class: null Surprising, because it's there on http://nexus.xwiki.org ... Thanks for help, Jeremie Side Note: I was a bit surprised to see that updating logback.xml to have most logs at "debug" level, impacts the install plan displayed by the extension manager. For example now it dumps all details of performed http requests, and I'm pretty sure it didn't with untouched logback.xml. Not sure if I find it nice or not, but I wondered if this is expected... I suppose it's because extension manager captures part of the logs.