Forum OpenACS Development: Re: Getting xotcl to worh on RedHat Server Enterprise 6.1 (32bit)

6: Re: Getting xotcl to worh on RedHat Server Enterprise 6.1 (32bit) (response to 3)

Posted by Gustaf Neumann on 07/28/11 06:24 AM

Joe, you seem to have an ancient version of xowiki installed, which tries to use the OpenACS function "attribute::exists_p", which does not seem to be available during startup.

I guessed the age of xowiki from the log-output (::Generic::CrClass, which was replaced in 2007), around this time, the usage of "attribute::exists_p" was eliminated in the class definition (the cvs browser from openacs seems to be down).

What version of xowiki, xotcl-core and OpenACS are you using? As mentioned above, the query ../xotcl/version-numbers returns the relevant version numbers, but maybe, your xotcl-core version is so old that it does not provide this query.

see the following two posts:
http://openacs.org/forums/message-view?message_id=1771379
http://openacs.org/forums/message-view?message_id=3636214

-gustaf neumann

8: Re: Getting xotcl to worh on RedHat Server Enterprise 6.1 (32bit) (response to 6)

Posted by Joe Sharkey on 08/02/11 04:35 PM

I have resolved this, thank you very much guys. I found the solution in one of your links; all I had to do was this:

11: Re: Error sourcing xowiki-procs.tcl: invalid command name "attribute::exists_p" (response to 1)
Posted by Andrew Helsley on 05/27/11 11:57 PM
I encountered the same error. It is caused by an inversion of the loading order of the acs-subsite and xowiki packages at startup. In order to define the ::xowiki::Object command xowiki requires uses attribute::exists_p proc. acs-subsite defines attribute::exists_p. Thus, if xowiki is loaded before acs-subsite, ::xowiki::Object will not be defined and this error occurs.

I don't have the ability to upgrade the server I'm working on, so I just modified packages/acs-tcl/tcl/apm-procs.tcl, changing:

ad_proc -public apm_load_packages {
...
# Load *-procs.tcl files
if { $load_libraries_p } {
apm_load_libraries -force_reload=$force_reload_p -packages $packages -procs
}
to:

ad_proc -public apm_load_packages {
...
# Load *-procs.tcl files
if { $load_libraries_p } {
apm_load_libraries -force_reload=$force_reload_p -packages acs-subsite -procs
apm_load_libraries -force_reload=$force_reload_p -packages $packages -procs
}
This modification forces acs-subsite to be loaded after all other core server initialization but before most other packages, including xowiki.

Once again, thank you.