# Error when creating On-Call Rosters **URL:** \ **Category:** Ignition\ **Created:** [May 21, 2013, 4:35pm UTC](https://forum.inductiveautomation.com/t/error-when-creating-on-call-rosters/6546 "2013-05-21T16:35:49Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![nrolling](https://avatars.discourse-cdn.com/v4/letter/n/5f8ce5/32.png) [@nrolling](https://forum.inductiveautomation.com/u/nrolling)\ **Post date:** [May 21, 2013, 4:35pm UTC](https://forum.inductiveautomation.com/t/error-when-creating-on-call-rosters/6546/1 "2013-05-21T16:35:49Z")
I recently upgrade from 7.5 to 7.6 on a test server. When I click on On-Call Roster from the Configure tab on the gateway I get an Internal Error. Error from System Console: [code] Time Logger Message [ERROR] 10:55:01 AM DefaultExceptionMapper Unexpected error occurred org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [WebMarkupContainer [Component id = table]] Caused by: java.lang.RuntimeException: An error occurred while getting the model object for Component: [ListView [Component id = rows, page = com.inductiveautomation.ignition.gateway.web.pages.Config, path = 18:config-contents:table:rows.ListView, isVisible = true, isVersioned = true]] Caused by: java.lang.NullPointerException: No known record for table name: ROSTER more[/code] Thanks ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [May 23, 2013, 2:52am UTC](https://forum.inductiveautomation.com/t/error-when-creating-on-call-rosters/6546/2 "2013-05-23T02:52:15Z")
What version is this - 7.6.0? I believe this has been fixed in the latest 7.6.1 release candidates. Can you try it out and let us know? ---
**Author:** ![nrolling](https://avatars.discourse-cdn.com/v4/letter/n/5f8ce5/32.png) [@nrolling](https://forum.inductiveautomation.com/u/nrolling)\ **Post date:** [May 23, 2013, 1:51pm UTC](https://forum.inductiveautomation.com/t/error-when-creating-on-call-rosters/6546/3 "2013-05-23T13:51:32Z")
It was 7.6.0, running on Linux. I tried 7.6.1-rc5. I did get a warning on the install. ```auto Installing 0% ______________50%______________ 100% ########################################Warning: Problem running post-install step. Installation may not complete correctly Error running chown -R root /etc/ignition/. : chown: cannot access `/etc/ignition/.': No such file or directory Press [Enter] to continue : # ---------------------------------------------------------------------------- Setup has finished installing Ignition on your computer. Start Ignition now [Y/n]: Y ``` So I created the /etc/ignition directory and ran the installer again. I am still getting an error when I go to create an On-Call Roster. Do I need to remove ignition and do a clean install? ```auto Time Logger Message [ERROR] 8:23:57 AM DefaultExceptionMapper Unexpected error occurred org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [WebMarkupContainer [Component id = table]] at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1692) at org.apache.wicket.Component.onBeforeRender(Component.java:3830) at org.apache.wicket.Component.internalBeforeRender(Component.java:922) at org.apache.wicket.Component.beforeRender(Component.java:990) at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1680) at org.apache.wicket.Component.onBeforeRender(Component.java:3830) at com.inductiveautomation.ignition.gateway.web.components.RecordActionTable.onBeforeRender(RecordActionTable.java:294) at org.apache.wicket.Component.internalBeforeRender(Component.java:922) at org.apache.wicket.Component.beforeRender(Component.java:990) at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1680) at org.apache.wicket.Component.onBeforeRender(Component.java:3830) at org.apache.wicket.Page.onBeforeRender(Page.java:802) at com.inductiveautomation.ignition.gateway.web.pages.BasePage.onBeforeRender(BasePage.java:161) at com.inductiveautomation.ignition.gateway.web.pages.AuthenticatedPage.onBeforeRender(AuthenticatedPage.java:90) at org.apache.wicket.Component.internalBeforeRender(Component.java:922) at org.apache.wicket.Component.beforeRender(Component.java:990) at org.apache.wicket.Component.internalPrepareForRender(Component.java:2204) at org.apache.wicket.Page.internalPrepareForRender(Page.java:247) at org.apache.wicket.Component.render(Component.java:2289) at org.apache.wicket.Page.renderPage(Page.java:1021) at org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:116) at org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:244) at org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:165) at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:814) at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64) at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:253) at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:210) at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:281) at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:245) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.RuntimeException: An error occurred while getting the model object for Component: [ListView [Component id = rows, page = com.inductiveautomation.ignition.gateway.web.pages.Config, path = 14:config-contents:table:rows.ListView, isVisible = true, isVersioned = true]] at org.apache.wicket.Component.getDefaultModelObject(Component.java:1620) at org.apache.wicket.markup.html.list.ListView.getViewSize(ListView.java:219) at org.apache.wicket.markup.html.list.ListView.onPopulate(ListView.java:473) at org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:116) at org.apache.wicket.Component.internalBeforeRender(Component.java:922) at org.apache.wicket.Component.beforeRender(Component.java:990) at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1680) ... 41 more Caused by: java.lang.NullPointerException: No known record for table name: ROSTER at com.inductiveautomation.ignition.gateway.localdb.LocalDBManagerImpl.findRecordMeta(LocalDBManagerImpl.java:287) at com.inductiveautomation.ignition.gateway.web.models.RecordListModel.load(RecordListModel.java:37) at com.inductiveautomation.ignition.gateway.web.models.RecordListModel.load(RecordListModel.java:25) at org.apache.wicket.model.LoadableDetachableModel.getObject(LoadableDetachableModel.java:121) at org.apache.wicket.Component.getDefaultModelObject(Component.java:1615) ... 47 more ``` ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [August 12, 2013, 9:49pm UTC](https://forum.inductiveautomation.com/t/error-when-creating-on-call-rosters/6546/4 "2013-08-12T21:49:09Z")
Are you still having this issue on the latest release (7.6.2?)