## Installation

by Dave Meng -
Number of replies: 2
I was following Upgrading instructions of Release notes for WeBWork 2.12 (http://webwork.maa.org/wiki/Release_notes_for_WeBWorK_2.12#.WZoCmFGGOUk). I did not know 2.13 has been released when I did git pulling.
Anyway, after some problems and with the help of our system administrator, I was able to finish step 8) upgrade_admin_ab.pl

Now, my problem is that I can not log into the admin course anymore. What should I do? If I try to log into a live webwork course, I got the following warning message and error message:
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Warning messages
• It looks like the database is missing a column. You may need to upgrade your course tables. If this is the admin course then you will need to upgrade the admin tables using the upgrade_admin_db.pl script. at /opt/webwork/webwork2/lib/WeBWorK/DB/Schema/NewSQL/Std.pm line 823.

### Error messages

DBD::mysql::st execute failed: Unknown column 'lis_source_did' in 'field list' at /opt/webwork/webwork2/lib/WeBWorK/DB/Schema/NewSQL/Std.pm line 826.
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I understand that I need to upgrade the database for my courses.

If this turns out to be a complicated problem, is there anyway that I can regress to what we have before(2.10?). We still have live courses going right now.

Our system is running Ubuntu 14.04.5 LTS. We were running webwork 2.10.
We upgraded to 2.10 two years ago after much struggle. I also posted messages asking for help her.

Thanks,

Dave

by Danny Glin -