Hello, Alexandre, I don’t have a solution for wildfly. I decided to switch to jetty. There everything works properly. Best Regards, Eimantas From: amonge [via XWiki] [mailto:ml+s475771n7603643h37@n2.nabble.com] Sent: Wednesday, April 26, 2017 5:45 PM To: Eimantas Zdanevičius &lt;Eimantas.Zdanevicius(a)bluebridge.lt&gt; Subject: Re: Can't add new group Hello, I have exactly the same problem. When I'm trying to add a new group, this message appears : An error occurred while communicating with the server. Please check that the server is accessible, and you have the proper rights to perform the requested action. [http://xwiki.475771.n2.nabble.com/file/n7603643/ErrorNewGroup.png] I tried with XE 8.4.4 and XE 8.4.5 .war on JBoss Wildfly 8 & 10 and an Oracle database, but I'm still getting the same error. The logs displayed on the server are the same as Eimantas. eimzdn wrote Hello, I find out that system jsr library is different version from that which comes with xwiki: ./modules/system/layers/base/javax/jws/api/main/jsr181-api-1.0-MR1.jar ./standalone/deployments/xwiki.war/WEB-INF/lib/jsr311-api-1.1.1.jar How can I tell wildfly to load xwiki library instead of system? Best regards, Eimantas I have edited the WEB-INF/jboss-deployment-structure.xml file to add the line <module name="javax.jws" /> on excluded dependencies (package of jsr181-api-1.0-MR1.jar), but no success. I tried with javax.ws too. Nevertheless, the standalone's version of XWiki has no problem, but I have to use a .war version. Does anyone have any solutions ? Best regards, Alexandre ________________________________ If you reply to this email, your message will be added to the discussion below: http://xwiki.475771.n2.nabble.com/Can-t-add-new-group-tp7603235p7603643.html To unsubscribe from Can't add new group, click here<http://xwiki.475771.n2.nabble.com/template/NamlServlet.jtp?macro=un…EwOTAxNDI=>. NAML<http://xwiki.475771.n2.nabble.com/template/NamlServlet.jtp?macro=ma… -- View this message in context: http://xwiki.475771.n2.nabble.com/Can-t-add-new-group-tp7603235p7603653.html Sent from the XWiki- Users mailing list archive at Nabble.com.