When the student user try to upload image through CKEditor following dialog appeared with an error message.
I have been searching for a solution for this.still unable to resolve.
org.sakaiproject.exception.PermissionException user=58095d7f-9abf-405a-a746-b3bdd673f216 lock=content.new resource=/content/group/52b29c56-c607-4c31-966d-e0394a7eeb78/21761483_756386641230111_2474470716028905585_n.jpg at org.sakaiproject.content.impl.BaseContentService.unlock(BaseContentService.java:1784) at org.sakaiproject.content.impl.BaseContentService.addResource(BaseContentService.java:3587) at org.sakaiproject.content.impl.BaseContentService.addResource(BaseContentService.java:3141) at org.sakaiproject.content.impl.BaseContentService.addResource(BaseContentService.java:3211) at org.sakaiproject.content.impl.BaseContentService.addResource(BaseContentService.java:3200) at org.sakaiproject.connector.fck.FCKConnectorServlet.doPost(FCKConnectorServlet.java:355) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:709) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622) at java.lang.Thread.run(Thread.java:748)
According to the exception, the problem is related to the user's permissions, have you checked it?
PermissionException: