Ok... I have red too much fast the instructions, I didn't see that I had to allow and connect with superadmin. Thanks for your answer. I have been able to import, but there was an issue. I guess it's not critical because I see it as a WARN, and because everything seems to be imported, but could you please confirm ? There are no clear information in the logs : WARN c.x.x.w.XWikiAction - Uncaught exception: Error number 11015 in 11: Exception while importing com.xpn.xwiki.XWikiException: Error number 11015 in 11: Exception while importing at com.xpn.xwiki.web.ImportAction.render(ImportAction.java:144) ~[xwiki-platform-legacy-oldcore-5.2.1.jar:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:293) [xwiki-platform-legacy-oldcore-5.2.1.jar:na] at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:128) [xwiki-platform-legacy-oldcore-5.2.1.jar:na] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) [struts-1.2.9.jar:1.2.9] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) [struts-1.2.9.jar:1.2.9] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) [struts-1.2.9.jar:1.2.9] at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) [struts-1.2.9.jar:1.2.9] at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) [tomcat6-servlet-2.5-api-6.0.24.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) [tomcat6-servlet-2.5-api-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) [catalina-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.24.jar:na] at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:121) [xwiki-platform-legacy-oldcore-5.2.1.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) [catalina-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.24.jar:na] at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144) [xwiki-platform-wysiwyg-server-5.2.1.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) [catalina-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.24.jar:na] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [xwiki-platform-webdav-server-5.2.1.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) [catalina-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.24.jar:na] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [xwiki-platform-container-servlet-5.2.1.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) [catalina-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.24.jar:na] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [xwiki-platform-container-servlet-5.2.1.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) [catalina-6.0.24.jar:na] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) [catalina-6.0.24.jar:na] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) [catalina-6.0.24.jar:na] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [catalina-6.0.24.jar:na] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [catalina-6.0.24.jar:na] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [catalina-6.0.24.jar:na] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [catalina-6.0.24.jar:na] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) [catalina-6.0.24.jar:na] at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) [tomcat-coyote-6.0.24.jar:na] at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) [tomcat-coyote-6.0.24.jar:na] at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769) [tomcat-coyote-6.0.24.jar:na] at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698) [tomcat-coyote-6.0.24.jar:na] at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) [tomcat-coyote-6.0.24.jar:na] at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) [tomcat-coyote-6.0.24.jar:na] at java.lang.Thread.run(Thread.java:662) [na:1.6.0_45] Caused by: java.lang.NullPointerException: null at com.xpn.xwiki.web.ImportAction.render(ImportAction.java:79) ~[xwiki-platform-legacy-oldcore-5.2.1.jar:na] ... 38 common frames omitted Thanks in advance for your help. -- View this message in context: http://xwiki.475771.n2.nabble.com/Impossible-to-import-Installation-seems-to... 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