[LON-CAPA-users] error on new course

Stuart Raeburn raeburn at msu.edu
Thu Aug 25 07:14:26 EDT 2016


> What might have gone wrong here, and is there any way to fix it?

It sounds as though copying from the course being cloned to the new  
course failed for the top-level map (i.e., the default.sequence file)  
in the old course.

The courseID of the new course tells me that your session was hosted  
on pittmath1, i.e., the Pitt Mathematics department's access server  
when you created the new course, and not Physics-Astronomy's library  
server (pittphyast1).

That means that there would have been a number of calls to retrieve  
sequence files (including default.sequence) from the library server,  
followed by copying, then modification (to replace instances of the  
old courseID with the new in any src attributes in the  
default.sequence file), and lastly notification to the homeserver for  
the new course (i.e., the library server) to copy the modified  
sequence files from the access server to the library server for  
permanent storage.

The routines in lonclonecourse.pm which are used for cloning do not  
currently return any information about success or failure of the  
various operations which occur when cloning a course, so you'd need to  
look in /home/httpd/perl/logs/lonnet.log on the access server, and/or  
/home/httpd/perl/logs/lond.log on the library server for information  
about failed replication.  However, since lonnet.log is rotated, the  
information in the lonnet.log file may no longer be around, if you  
created the new course more than a few days ago.

What to do?

Depending on how much work you have done in the new course, since  
cloning, you could just create another course, (again with cloning),  
but this time with a web session hosted on the library server.  You  
could then rename the current "2171_24834 PHYS 0081 Space & Time,  
Light & Matter" course, disable auto-enrollment, and expire all roles.

Or you could attempt to repair the 6E101732148bb57dcpittmath1 course  
by using  command line access (as user www) to copy the  
default.sequence file from  
/home/httpd/lonUsers/pitt/$1/$2/$3/$clonedcourse/userfiles/default.sequence to  
/home/httpd/lonUsers/pitt/6/E/1/6E101732148bb57dcpittmath1/userfiles/default.sequence, and then use a text editor to replace any instances of $clonedcourse with 6E101732148bb57dcpittmath1 (where $clonedcourse is the courseID of the course that was cloned, and $1, $2, $3 are the first three characters in that  

Of course it may be that other sequence files, besides  
default.sequence, were also not copied/modified from the old course to  
the new course, so you might need to do the same for them.

Stuart Raeburn
LON-CAPA Academic Consortium

> The other day, I cloned a course from last fall for use in the   
> coming term.  I thought it worked, but now when I try to access that  
>  course as course coordinator, I get the following error message:
> The following problems occurred:
> Map not loaded: The file   
> /home/httpd/html/userfiles/pitt/6E101732148bb57dcpittmath1/default.sequence   
> does not exist.
> What might have gone wrong here, and is there any way to fix it?
> -Jim Mueller

More information about the LON-CAPA-users mailing list