Why am I seeing "Unknown keyword" lines in the keepalived logs and keepalived is not fully starting?

Issue

• keepalived fails to set the VIP

• The following messages appear in /var/log/messages:

  Keepalived[43827]: Opening file '/etc/keepalived/keepalived.conf'.
  Keepalived[43827]: (Line 7) Unknown keyword 'vrrp_instace'
  Keepalived[43827]: (Line 7) Unexpected '{' - ignoring
  Keepalived[43827]: (Line 8) Unknown keyword 'interface'
  Keepalived[43827]: (Line 9) Unknown keyword 'state'
  Keepalived[43827]: (Line 10) Unknown keyword 'virtual_router_id'
  Keepalived[43827]: (Line 11) Unknown keyword 'priority'
  Keepalived[43827]: (Line 12) Unknown keyword 'virtual_ipaddress'
  Keepalived[43827]: (Line 12) Unexpected '{' - ignoring
  Keepalived[43827]: (Line 13) Unknown keyword 'xxx.xxx.xxx.xxx'
  Keepalived[43827]: (Line 14) Unknown keyword '}'
  ...
  Keepalived[43827]: (Line 18) Unknown keyword '}'