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<p class=MsoNormal><span lang=EN-US>Hi all. I’m new in Ros, and needing
some help to follow the tutorials.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> When I type ( $ rostopic pub -1 /turtle1/cmd_vel
geometry_msg/Twist -- `[2.0, 0.0, 0.0]´ ´[0.0, 0.0, 1.8] )<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> The previous command sends a message to
turtlesim to move an linear velocity of 2.0 and an angular velocity of 1.8. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I get this ( ERROR: invalid
message type: geometry_msg/Twist. )<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Anibody cam tel me where did I go wrong?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I´m using ros hidro on ubuntu 12 lts, inside
a virtualbox vm.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Thanks for all.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
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