Forum Problems Installing LAMS: LAMS Moodle Integration 500 Error


 
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1: LAMS Moodle Integration 500 Error
06/19/06 05:03 AM
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Hi all,

I know others have posted similar (none of the issues appears to be resolved), so I'm creating a new thread in the hope of getting on top of it.

My problem is that I have blank drop-downs for 'Select Workspace', etc, when creating a new LAMS activity in Moodle.

When I click on 'Create New Sequence' I get the following:

=======

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: error.username.unique
at org.lamsfoundation.ld.security.web.LoginRequestServlet.doGet(LoginRequestServlet.java:165)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.jboss.web.catalina.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrRealm.java:227)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.lamsfoundation.ld.security.valve.LoginRequestValve.invoke(LoginRequestValve.java:80)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:534)

root cause

com.webmcq.ld.usermanagement.UserManagementException: error.username.unique
at com.webmcq.ld.usermanagement.UserManagementServiceBean.updateUser(UserManagementServiceBean.java:424)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:660)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:77)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:107)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:237)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:98)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:130)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:208)
at org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:313)
at org.jboss.ejb.Container.invoke(Container.java:738)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)
at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:99)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:102)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:77)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:80)
at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:111)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
at $Proxy174.updateUser(Unknown Source)
at com.webmcq.ld.ws.UserManagementServiceDelegate.createUserFromUserData(UserManagementServiceDelegate.java:305)
at com.webmcq.ld.ws.UserManagementServiceDelegate.getUserDataAndCreateUser(UserManagementServiceDelegate.java:298)
at org.lamsfoundation.ld.security.web.LoginRequestServlet.doGet(LoginRequestServlet.java:163)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.jboss.web.catalina.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrRealm.java:227)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.lamsfoundation.ld.security.valve.LoginRequestValve.invoke(LoginRequestValve.java:80)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:534)

Apache Tomcat/4.1.24-LE-jdk14

=======

The url for this is the following:

http://myserver:8080/lams/LoginRequest?uid=admin&method=author&ts=June+19%2C2006+11%3A50+am&sid=swanvle&hash=d7d5e0e4999154ea78adec041421806e893b3a7d&course_id=4

Has anyone got any ideas?

Many thanks,

Kris

Posted by Kristian Besley

2: Re: LAMS Moodle Integration 500 Error
In response to 1 06/19/06 05:32 PM
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It looks like there's an existing user for 'admin' in the lams table - this might have happened if you'd setup a moodle server entry in ext_server_org_map, logged into moodle as admin, and then changed to a different moodle server entry with a different id/key - but using the same 'prefix'. The prefix, together with the id/key (as a set), needs to be unique, otherwise you will get the 'error.username.unique' error.

You can check if this is the case just be looking into tbl_user for a user with the login '{prefix}_admin', where {prefix} is the prefix entered in ext_server_org_map. To fix you can try changing the prefix entry in ext_server_org_map to something else.

Posted by Jun-Dir Liew

3: Re: LAMS Moodle Integration 500 Error
In response to 1 06/20/06 02:30 AM
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Hi Jun-Dir,

You are correct about the duplicate user it seems. I've now changed the prefix to something else and I am able to create a new sequence now.

The remaining problem however seems to be that the drop-downs in a new LAMS Moodle activity are still blank. It tries to load and just chokes.

Any ideas on why this isn't working? It looks like a common problem...

Thanks,

Kris

Posted by Kristian Besley

4: Re: LAMS Moodle Integration 500 Error
In response to 1 06/20/06 07:18 PM
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Are you using Moodle 1.6? There is a line that seems to be missing in mod/lams/lib.php, where there should be a line like 'require_once('/path/to/config.php');' where config.php is the file in your moodle home directory. Without this line, there is no soap communication (used to retrieve sequence and workspace list).

Posted by Jun-Dir Liew

5: Re: LAMS Moodle Integration 500 Error
In response to 1 06/21/06 01:57 AM
[ Reply | Forward ]
Hi Jun-Dir,

Wow! You've solved it. The line you specified was missing from the lib.php file. I put it in and the drop-downs have appeared again. Is this something the Moodlers (or whoever is in charge of the mod) know about?

I'll make a note of this for others on my project.

Thanks a lot,

Kris

Posted by Kristian Besley

6: Re: LAMS Moodle Integration 500 Error
In response to 1 06/21/06 05:22 PM
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I'm not sure about the Moodlers, but we know about it. It's on our developer's todo list...

For Moodle 1.5, the lams module available at lamsfoundation.org doesn't have this issue.

Posted by Jun-Dir Liew

7: Re: LAMS Moodle Integration 500 Error
In response to 1 11/29/06 01:11 AM
[ Reply | Forward ]
Hi everyone!

I read this topic carefully but my problem still not be resolve

In my project, the drop-down workspace and sequence are blank although I try to add the missing line (like privious topic written)

The error message show when I click at Create new sequence is:


HTTP Status 400 - Login Failed - login parameters missing

type Status report

message Login Failed - login parameters missing

description The request sent by the client was syntactically incorrect (Login Failed - login parameters missing).
Apache Tomcat/5.5.9

I don't know why, plz help me more!!!
Thanks so much!

Posted by Hoang Van Huan

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