no [LWP::UserAgent not found]

root@ns3321634:~# munin-node-configure --suggest |grep apache
apache_accesses | yes | no [LWP::UserAgent not found]
apache_processes | yes | no [LWP::UserAgent not found]
apache_volume | yes | no [LWP::UserAgent not found]
# The following plugins caused errors:
# ip_:
# Nothing printed to stdout
# No valid suggestions
# ntp_states:
# Non-zero exit during autoconf (2)
# postgres_autovacuum:
# Non-zero exit during autoconf (255)
# postgres_bgwriter:
# Non-zero exit during autoconf (255)
# postgres_cache_:
# Non-zero exit during autoconf (255)
# postgres_checkpoints:
# Non-zero exit during autoconf (255)
# postgres_connections_:
# Non-zero exit during autoconf (255)
# postgres_connections_db:
# Non-zero exit during autoconf (255)
# postgres_locks_:
# Non-zero exit during autoconf (255)
# postgres_oldest_prepared_xact_:
# Non-zero exit during autoconf (255)
# postgres_prepared_xacts_:
# Non-zero exit during autoconf (255)
# postgres_querylength_:
# Non-zero exit during autoconf (255)
# postgres_scans_:
# Non-zero exit during autoconf (255)
# postgres_size_:
# Non-zero exit during autoconf (255)
# postgres_transactions_:
# Non-zero exit during autoconf (255)
# postgres_tuples_:
# Non-zero exit during autoconf (255)
# postgres_users:
# Non-zero exit during autoconf (255)
# postgres_xlog:
# Non-zero exit during autoconf (255)
# proc:
# In family 'auto' but doesn't have 'autoconf' capability
# tomcat_:
# Non-zero exit during autoconf (127)
# varnish_:
# Non-zero exit during autoconf (2)

apache_accesses | yes | no [LWP::UserAgent not found]
apache_processes | yes | no [LWP::UserAgent not found]
apache_volume | yes | no [LWP::UserAgent not found]

nginx_request | yes | no [LWP::UserAgent not found]
nginx_status | yes | no [LWP::UserAgent not found]