amcl_pose does not publish

edit

Following my last question, No laser scan recieved still nothing is published by /amcl_pose and roswtf out is:

WARNING The following node subscriptions are unconnected:
 * /amcl:
   * /initialpose


Found 5 error(s).

ERROR Communication with [/amcl] raised an error: 
ERROR Communication with [/play_1391569963540725368] raised an error: 
ERROR Communication with [/rosout] raised an error: 
ERROR Communication with [/map_server_1391569952840022254] raised an error: 
ERROR The following nodes should be connected but aren't:
 * /amcl->/amcl (/tf)
 * /play_1391569963540725368->/amcl (/base_scan)
 * /play_1391569963540725368->/map_server_1391569952840022254 (/clock)
 * /play_1391569963540725368->/amcl (/clock)
 * /map_server_1391569952840022254->/rosout (/rosout)
 * /amcl->/rosout (/rosout)
 * /play_1391569963540725368->/rosout (/rosout)
 * /play_1391569963540725368->/amcl (/tf)
 * /play_1391569963540725368->/play_1391569963540725368 (/clock)

What's the problem?