[CWB] how to fix Base class package "CWB::CEQL" is empty

[Stephanie Evert]

Hi Andrés,

re-installing CWB wasn't your problem, what you're lacking are the CWB perl modules which contain the CEQL parser used by older versions of CQPweb to implement simple queries.  Since some of the Perl modules are there, you must have installed them at some point, ideally with

	cpan CWB
	cpan CWB::CL

In understand that you found a directory

	/usr/local/lib/x86_64-linux-gnu/perl/5.38.2/CWB

but this should only contain the CWB::CL module, which includes compiled code.  It is also worrying that your directory listing contains CL.pm, which must be a very old version of the module before it was renamed to CWB::CL.  But you don't need either for CWB.

The modules you actually need should be in

	/usr/local/share/perl/5.38.2/CWB

because they're platform-independent pure Perl packages.  The error message from the CQPweb server says that it can't access the file "CEQL.pm" in this directory.  One possibility would be that file access permissions prevent the Web server from reading the file.

Best,
Stephanie


> On 16 Sep 2024, at 16:03, Andrés Chandía <andreschandiaf at gmail.com> wrote:
> 
> Just another fact: queries with cqp syntax work well, but simple queries do not, they output the error message I opened this thread with..
> 
> El lun, 16 sept 2024 a las 11:00, Andrés Chandía (<andreschandiaf at gmail.com>) escribió:
> After re-installing cwb the problem does not solves but the message now says:
> or make that module available in @INC (@INC contains:
> /etc/perl
> /usr/local/lib/x86_64-linux-gnu/perl/5.38.2
> /usr/local/share/perl/5.38.2
> /usr/lib/x86_64-linux-gnu/perl5/5.38
> /usr/share/perl5
> /usr/lib/x86_64-linux-gnu/perl-base
> /usr/lib/x86_64-linux-gnu/perl/5.38
> /usr/share/perl/5.38 /usr/local/lib/site_perl)."
> Checking what's inside of the second listed directory I get:
> auto  Bundle  CL.pm  CWB  DBD  DBI  DBI.pm  dbixs_rev.pl  HTML  perllocal.pod  Proc  Term  Win32
> 
> Where the cwb modules are present but I still get the error message...
> 
> that's so far...
> 
> El dom, 15 sept 2024 a las 20:26, Andrés Chandía (<andreschandiaf at gmail.com>) escribió:
> Hi there,
> I've gone through an update of the server where our installation of cqpweb redsides..
> When i do a query now I get:
> 
> Sorry, your simple query [[[ word ]]] contains a syntax error.
> Base class package "CWB::CEQL" is empty.
> (Perhaps you need to 'use' the module which defines that package first,
> or make that module available in @INC (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.38.2 /usr/local/share/perl/5.38.2 /usr/lib/x86_64-linux-gnu/perl5/5.38 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl-base /usr/lib/x86_64-linux-gnu/perl/5.38 /usr/share/perl/5.38 /usr/local/lib/site_perl).
> at ../lib/perl/cqpwebCEQL.pm line 27.
> BEGIN failed--compilation aborted at ../lib/perl/cqpwebCEQL.pm line 27.
> Compilation failed in require at - line 2.
> 
> In the manual it says:
> 
> Assuming you do install to this standard location, there is a known “gotcha” to be aware of:
> when you update your system software to use a newer version of Perl, any modules in directories whose path includes the old version number may no longer be detected. You will need either to reinstall the modules, or else to move the modules across from the directory with the old version number to the directory with the new version number.
> 
> So I checked where the server stores perl, this is what I got:
> /usr/share/perl/
> 5.38 -> 5.38.2
> /5.38.2
> 
> /usr/share/perl5/
> Algorithm CGI cpanfile.pod Devel Error.pm Getopt IO local MailTools.pm MooX Parse Reply String TimeDate.pm WWW Any CGI.pm Data Dpkg Eval Git IPC LWP MailTools.pod MRO Path Role Sub Try X11 App CGI.pod Date Dpkg.pm Exporter Git.pm JSON lwpcook.pod Method namespace Pod Roman.pm Test Type XML Archive Class Debconf DynaLoader Fh.pm HTML JSON.pm LWP.pm Module Net Readonly.pm Software Text Types Authen CPAN Debian Encode File HTTP lib lwptut.pod Moo oo.pm Ref strictures Tie URI B cpanfile-faq.pod DebianLinux.pm Error Font Import List Mail Moo.pm Package Regexp strictures.pm Time URI.pm
> 
> /usr/lib/x86_64-linux-gnu/perl/
> 5.38 -> 5.38.2
> 5.38.2 cross-config-5.38.2 debian-config-data-5.38.2
> 
> /usr/lib/x86_64-linux-gnu/perl5/
> 5.38
> 
> /usr/lib/x86_64-linux-gnu/perl-base/
> attributes.pm builtin.pm Carp.pm constant.pm Exporter fields.pm Hash IPC overloading.pm re.pm strict.pm unicore warnings.pm auto bytes_heavy.pl Config_git.pl Cwd.pm Exporter.pm File integer.pm lib.pm overload.pm Scalar Symbol.pm utf8.pm XSLoader.pm AutoLoader.pm bytes.pm Config_heavy.pl DynaLoader.pm Fcntl.pm FileHandle.pm IO List parent.pm SelectSaver.pm Text vars.pm base.pm Carp Config.pm Errno.pm feature.pm Getopt IO.pm locale.pm POSIX.pm Socket.pm Tie warnings
> 
> /usr/local/share/perl/
> 5.22.1 5.26.1 5.30.0 5.34.0
> 
> As none of these corresponds to the locations you mention in the manual I have created links inside:
> /usr/local/lib/perl/{$version}/ and /usr/lib/perl5/{$version}/
> making the {$version} correspond to the newest version, for example:
> inside /user/lib, where there is no directory perl or perl5:
> ln -s /usr/lib/x86_64-linux-gnu/perl5  because this directory contains "5.38"
> 
> As I said, I tried them all without success...
> 
> Then I I tried installing:
> dpkg -i cwb_3.5.0-1_amd64.deb
> 
> No success again....
> 
> So, I downloaded: cwb-3.5.0-src.tar.gz and tried installing:
> ./install-scripts/install-linux
> 
> No success...
> 
> Finally, I tried
> edit config.mk → PLATFORM=linux-64
> make clean
> make depend
> make all
> make install
> make realclean
> 
> But I still get the same message on querying... so, my question is, am I doing the right things?, if not, how should I solve this problem...
>  Thanks!
> 
> -- 
> Andrés Chandía
> 
> 
> -- 
> Andrés Chandía
> 
> 
> -- 
> Andrés Chandía
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