在perl催化剂中运行Server.pl时遇到的以下错误
trx@server1 ~/testing $ pages/script/pages_server.pl
Couldn't load class (Catalyst::Script::Server) because: "ensure_class_loaded" is not exported by the Catalyst::Utils module
Can't continue after import errors at /opt/trx/lib/perl5/Catalyst/ScriptRole.pm line 7.
BEGIN failed--compilation aborted at /opt/trx/lib/perl5/Catalyst/ScriptRole.pm line 7.
Compilation failed in require at /usr/lib/perl5/site_perl/5.8.8/Module/Runtime.pm line 313.
Compilation failed in require at /opt/trx/lib/perl5/Catalyst/ScriptRunner.pm line 13.
Catalyst::ScriptRunner::find_script_class("Catalyst::ScriptRunner", "pages", "Server") called at /opt/trx/lib/perl5/Catalyst/ScriptRunner.pm line 42
Catalyst::ScriptRunner::run("Catalyst::ScriptRunner", "pages", "Server") called at pages/script/pages_server.pl line 8
解决此问题需要遵循的所有步骤是什么？