[Java-player-users] [PlayerClient]: Error reading header: java.io.EOFException

[maniabee <man...@gm...>]

Hello, 

I am a newbie...so maybe my problem is very cliche. I have been using Player
2.0.3/Gazebo 0.7.0 (and sometimes Stage 2.0.3) I tried the example the
SpaceWandererExample as it is, once with Stage ...and once with Gazebo. With
Stage it works fine, but with Gazebo it outputs 

SpaceWandererExample: > Error connecting to Player:
    [ javaclient2.PlayerException: [PlayerClient]: Error reading header:
java.io.EOFException ]

after that, I added the following in the catch loop, which showed that posi
and soni device is null, they're never created

if (robot == null){System.err.println("Server null");}
if (posi == null){ System.err.println("posi null");}
if (soni == null){System.err.println("soni null");}

My cfg is

driver
(
name "gazebo"
provides ["simulation:0"]
plugin "libgazeboplugin"
server_id "default"
)
driver
(
name "gazebo"
provides ["position2d:0" "sonar:0"]
gz_id "robot1"
)

and my world includes

<model:Pioneer2DX>
	<id>robot1</id>
	<xyz>0 0 0.200</xyz>
	<model:SickLMS200>
		<id>laser1</id>
		<xyz>0.0 0.0 0.00</xyz>
	</model:SickLMS200>
</model:Pioneer2DX>

The procedure I follow is 
a)gazebo *.world
b)player *.cfg
c)java -classpath . SpaceWandererExample (from within the Javaclient/class)

each run...outputs the following
a)** Gazebo 0.7.0    etc...**
using display [:0.0]
rendering: [GLX offscreen] direct [no] RGBA [8 8 8 8] depth [24]
server id [0]
b)* Part of the Player/Stage/Gazebo Project
[http://playerstage.sourceforge.net].
* Copyright (C) 2000 - 2006 Brian Gerkey, Richard Vaughan, Andrew Howard,
* Nate Koenig, and contributors. Released under the GNU General Public
License.
* Player comes with ABSOLUTELY NO WARRANTY.  This is free software, and you
* are welcome to redistribute it under certain conditions; see COPYING
* for details.

trying to load /home/mania/thesis/examples/hopeworks/./libgazeboplugin...
trying to load /usr/local/lib/libgazeboplugin...
success
invoking player_driver_init()...

 ** Gazebo plugin v0.7.0 etc**
success
  Gazebo Plugin driver creating 1 device
    6665.31.0 is  a simulation interface.
gz_client.c:122 opening /tmp/gazebo-root-0
gz_iface.c:214 opening /tmp/gazebo-root-0/sim.default 060 180
  Gazebo Plugin driver creating 2 devices
    6665.4.0 is  a position2d interface.
    6665.5.0 is  a sonar interface.
Listening on ports: 6665

c)Player v.2.0.3
selected devices [localhost:6665]:
 6665:simulation:0 (gazebo)
 6665:position2d:0 (gazebo)
 6665:sonar:0 (gazebo)
posi null (-- this is because of the added system.err.print...)
soni null  (--and this too...)
SpaceWandererExample: > Error connecting to Player:
    [ javaclient2.PlayerException: [PlayerClient]: Error reading header:
java.io.EOFException ]

I am wondering..devices are created correctly when using Stage and not when
using Gazebo...since the code is the same..is something wrong with my world
and cfg files or there is incompatibility between gazebo 0.7? I saw that
examples were tested with Gazebo 0.6... What is more, I haven't found a
complete example with Javaclient2 using Gazebo, please if there is sth could
anybody let me know? 

Thank u in advance, 
Manya 

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