5.0.3 to 5.0.5 Upgrade - Mason GetStylesheet error

1

Hello! We’ve upgraded our 5.0.3 RT installation to 5.0.5 including the database. The application is running on Debian 11.

After the upgrade, the pages load sometimes, but then other times fail with a message “An internal RT error has occurred. Your administrator can find more details in RT’s log files.” Syslog shows the below. I get the error 50-60% of the time, then other times it just works? Really at a loss as to what’s happening here.

Mar 15 12:16:10 hostname RT: [36043] Undefined subroutine &HTML::Mason::Commands::GetStylesheet called at /opt/rt5/share/html/Elements/Header line 137.#012#012Stack:#012 [/opt/rt5/share/html/Elements/Header:137]#012 [/opt/rt5/share/html/Ticket/Display.html:48]#012 [/opt/rt5/share/html/Ticket/autohandler:66]#012 [/opt/rt5/sbin/…/lib/RT/Interface/Web.pm:741]#012 [/opt/rt5/sbin/…/lib/RT/Interface/Web.pm:420]#012 [/opt/rt5/share/html/autohandler:53]

Anyone have any ideas? Many thanks in advance!

2

First thing I’d check is to make sure you’ve cleared out the mason cache directories.

3

That did the trick. Used information from CleanMasonCache - Request Tracker Wiki and restarted apache, and the problem was resolved. Thanks!