org.xwiki.extension.InstallException: The extension [org.xwiki.enterprise:xwiki-enterprise-ui-all-4.3-milestone-1] is already installed on namespace [wiki:xwiki]

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via XWiki.org JIRA by Thomas Mortagne, 1 year ago
The extension [org.xwiki.enterprise:xwiki-enterprise-ui-all-4.3-milestone-1] is already installed on namespace [wiki:xwiki]
org.xwiki.extension.InstallException: The extension [org.xwiki.enterprise:xwiki-enterprise-ui-all-4.3-milestone-1] is already installed on namespace [wiki:xwiki]
at org.xwiki.extension.repository.internal.installed.DefaultInstalledExtensionRepository.installExtension(DefaultInstalledExtensionRepository.java:559)
at com.xpn.xwiki.plugin.packaging.Package.registerExtension(Package.java:709)
at com.xpn.xwiki.plugin.packaging.Package.install(Package.java:675)
at com.xpn.xwiki.plugin.packaging.PackageAPI.install(PackageAPI.java:316)
at com.xpn.xwiki.web.ImportAction.render(ImportAction.java:132)
at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:231)
at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:116)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:538)
at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:120)
at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144)
at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1323)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:476)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:517)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:937)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:183)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:871)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:247)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
at org.eclipse.jetty.server.Server.handle(Server.java:346)
at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:589)
at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1065)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:823)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:220)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:535)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40)
at java.lang.Thread.run(Thread.java:679)

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