install JSON
install DBD::Pg 1.32, 1.41 or later (not 1.40) (or, if you're using a Perl version before 5.6, you could try installing DBD::Pg 1.22 with <a href="http://420.am/~ivan/DBD-Pg-1.22-fixvercmp.patch">this patch</a> and commenting out the "use DBD::Pg 1.32" at the top of DBIx/DBSchema/DBD/Pg.pm)
-install DBIx::DBSchema 0.26
+install DBIx::DBSchema 0.27 (or later)
+ (if you are running Pg version 7.2.x or earlier, install at least
+ DBIx::DBSchema 0.29)
install Net::SSH 0.08
install HTML::Widgets::SelectLayers 0.05