The Bugzilla Guide
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# 4.5. Troubleshooting

This section gives solutions to common Bugzilla installation problems.

## 4.5.1. Bundle::Bugzilla makes me upgrade to Perl 5.6.1

Try executing perl -MCPAN -e 'install CPAN' and then continuing.

Certain older versions of the CPAN toolset were somewhat naive about how to upgrade Perl modules. When a couple of modules got rolled into the core Perl distribution for 5.6.1, CPAN thought that the best way to get those modules up to date was to haul down the Perl distribution itself and build it. Needless to say, this has caused headaches for just about everybody. Upgrading to a newer version of CPAN with the commandline above should fix things.

## 4.5.2. DBD::Sponge::db prepare failed

The following error message may appear due to a bug in DBD::mysql (over which the Bugzilla team have no control):

     DBD::Sponge::db prepare failed: Cannot determine NUM_OF_FIELDS at D:/Perl/site/lib/DBD/mysql.pm line 248.
      SV = NULL(0x0) at 0x20fc444
      REFCNT = 1
      FLAGS = (PADBUSY,PADMY)

To fix this, go to `<path-to-perl>/lib/DBD/sponge.pm` in your Perl installation and replace

     my $numFields;
     if ($attribs->{'NUM_OF_FIELDS'}) {
         $numFields = $attribs->{'NUM_OF_FIELDS'};
     } elsif ($attribs->{'NAME'}) {
         $numFields = @{$attribs->{NAME}};

by

     my $numFields;
     if ($attribs->{'NUM_OF_FIELDS'}) {
         $numFields = $attribs->{'NUM_OF_FIELDS'};
     } elsif ($attribs->{'NAMES'}) {
         $numFields = @{$attribs->{NAMES}};

(note the S added to NAME.)

## 4.5.3. cannot chdir(/var/spool/mqueue)

If you are installing Bugzilla on SuSE Linux, or some other distributions with "paranoid" security options, it is possible that the checksetup.pl script may fail with the error:

    cannot chdir(/var/spool/mqueue): Permission denied

This is because your `/var/spool/mqueue` directory has a mode of "drwx------". Type chmod 755 `/var/spool/mqueue` as root to fix this problem.

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