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RLException: Unable to contact my own server #5

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telemux opened this issue Dec 15, 2022 · 3 comments
Open

RLException: Unable to contact my own server #5

telemux opened this issue Dec 15, 2022 · 3 comments

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@telemux
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telemux commented Dec 15, 2022

Fehlermeldung, wenn roscore gestartet wird:

RLException: Unable to contact my own server at [http://cyper:40771/].
This usually means that the network is not configured properly.
A common cause is that the machine cannot connect to itself.  Please check
for errors by running:
	ping cyper
For more tips, please see
	http://wiki.ros.org/ROS/NetworkSetup
The traceback for the exception was written to the log file

cyper ist der $HOSTNAME meines Laptops.

Was mir geholfen hat:

Starte den docker-Container mit HOSTNAME=localhost. Kann in die docker-compose-headless.yml unter environment eingefügt werden oder in das Image selber geschrieben werden.

@artnie
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artnie commented Dec 20, 2022

lass uns dann am echten Roboter testen ob das networking noch funktioniert. Da muss die config akkurat sein, und wir können herausfinden, wo das Problem bei dir lag.

@telemux
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telemux commented Dec 20, 2022

Gerne. Wann möchtest du diesbezüglich an dem Roboter arbeiten?

@artnie
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artnie commented Dec 21, 2022

Beim Kurs gehts mit den Robotern weiter. Erste session wird sein die Connection aufzubauen. Da kann man das gut testen.

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