Course export/import-Win/Linux issue

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Max Devin

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May 15, 2016, 1:39:17 AM5/15/16

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Hi guys,

I am having a serious issue with the course import and export feature in Win and Linux. I've built the whole system in a Win and created many courses in it.

After that, I just exported app to war, openolat db to sql and zipped olatdata folder. I copied everything to a linux, changed path in olat.local.properties and imported the sql data into mysql. After a few minor issues I managed to run it on Linux.

Unfortunately there was some problem with my courses. They were visible in the Courses section, but after clicking them I got an internal error no. 1 (see below). Assuming that it might be some encoding issue related to the fact that I had just copied olatdata from Win do Linux, a deleted courses and tried to export-import from Win to Linux. Export was fine. I got zip file. I checked it- I could open it. But when I tried to import into Linux I got an internal error no. 2. I tried to debug it by trying to use a simple course (title, description, logo image plus one single page of dummy content) both in Win and Linux. In Win it was fine - both creation and export. In Linux I had a problem with export - an error no 3 (as browser error code).

I'd attribute the whole issue to the Win/Linux migration as I lost all the config from Win when I first started Linux verion. But the fact that I cannot export course created in Linux indicate that something else must be wrong.

p.s. attempt to import course in Win that I have just exported in Win also gives an error no. 2.

Thanks in advance for any help.

Max

System Win8.1 and Ubuntu 14

Openolat 10.3.2

Tomcat 8.0.33

Java 8

Error no. 1

The learning resource is corrupted and can not be displayed. Contact your support staff or use the delete link to remove this resource from the system.

Error no. 2:

Oops, something went wrong!

Error code: N1-E5

Last business path: http://localhost:8080/url/RepositoryEntry/20348931/CourseNode/93642270500641

Business path: http://localhost:8080/url/RepositorySite/0/My/0

<compclass>org.olat.core.gui.components.form.flexible.impl.FormWrapperContainer</compclass>

<event>

<class>org.olat.core.gui.control.Event</class>

<command>validation ok</command>

<tostring>com:validation ok,org.olat.core.gui.control.Event@d62b3f02</tostring>

</event>

</componentinfo>

<controllername>org.olat.repository.ui.author.ImportRepositoryEntryController</controllername>

<controllername>org.olat.repository.ui.author.AuthorListController</controllername>

<controllername>org.olat.repository.ui.author.OverviewAuthoringController</controllername>

<controllername>org.olat.core.commons.fullWebApp.BaseFullWebappController</controllername>

</controllerinfo>

</dispatchinfo>

Throwable: java.lang.ClassCastException

message:org.olat.core.util.vfs.LocalFolderImpl cannot be cast to org.olat.core.commons.modules.bc.vfs.OlatRootFolderImpl,java.lang.ClassCastException

at org.olat.course.PersistingCourseImpl.getCourseExportDataDir(PersistingCourseImpl.java:160)

at org.olat.repository.handlers.CourseHandler.importReferences(CourseHandler.java:383)

at org.olat.repository.handlers.CourseHandler.importResource(CourseHandler.java:262)

at org.olat.repository.ui.author.ImportRepositoryEntryController.doImport(ImportRepositoryEntryController.java:228)

at org.olat.repository.ui.author.ImportRepositoryEntryController.formOK(ImportRepositoryEntryController.java:154)

at org.olat.core.gui.components.form.flexible.impl.FormBasicController.event(FormBasicController.java:367)

at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:202)

at org.olat.core.gui.components.AbstractComponent$1.run(AbstractComponent.java:240)

at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)

at org.olat.core.gui.components.AbstractComponent.fireEvent(AbstractComponent.java:238)

Error no. 3 (with browser link path www.mydomain.com/m/0a96ae1313e45f811618f8a99fa2027e/) :

HTTP Status 500 - mr already served, relPath =/,

type Exception report

message mr already served, relPath =/,

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

exception

org.olat.core.logging.AssertException: mr already served, relPath =/,

org.olat.core.gui.control.winmgr.MediaResourceMapper.handle(MediaResourceMapper.java:50)

org.olat.core.dispatcher.mapper.MapperDispatcher.execute(MapperDispatcher.java:116)

org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:280)

org.olat.core.servlets.OpenOLATServlet.doGet(OpenOLATServlet.java:209)

javax.servlet.http.HttpServlet.service(HttpServlet.java:622)

org.olat.core.servlets.OpenOLATServlet.service(OpenOLATServlet.java:166)

javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

java.lang.Exception: assertionstackgenerator

org.olat.core.logging.AssertException.<init>(AssertException.java:53)