The sonar and laser interfaces have been substituted by the genetic ranger interface.
You have to edit your programs, or use older versions of player and stage (don't know exactly which though).

Regards
Claudio Carbone
-- Sent from my ParanoidAndroid Galaxy Nexus with K-9 Mail.

Bin Xu <lebronxb@gmail.com> wrote:
Hi I am doing a robot simulation project and I am quite a newbie in Player/Stage

When I run the program written my my seniors,i go the following error:

playerc error   : got NACK from request
playerc error   : failed to get response
Could not connect to sonar proxy
SonarProxy::SonarProxy()(-1) : could not subscribe
Ignoring.
terminate called after throwing an instance of 'PlayerCc::PlayerError'
Aborted


Is this because there is something wrong with the configuration files?
The player version i am using is 3.1.0 and stage is 4.1.1.




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