p2os_teleop should not interfere with writing to a bagfile. Make sure
that you have write permissions for the directory where the bagfile
will be written, (this is not always the current directory, sometimes
it is /opt/ros/ros or ~/ros/ros whereever the ros installation was
done).

On Tue, Jul 20, 2010 at 10:32 AM, Rishi Bedi <rbedi100@gmail.com> wrote:
> Ya, I did that.
> It may have something to do with the p2os_teleop package that I am
> using -- could they be interfering? I installed the teleop package
> after gmapping worked for me last Friday... so that's probably it...
> any ideas on interference between the two?
> Thanks
> Rishi
>
>
> Rishi Bedi
> rbedi100@gmail.com
>
>
>
> On Tue, Jul 20, 2010 at 12:30 PM, Brian Gerkey <gerkey@willowgarage.com> wrote:
>> hi Rishi,
>>
>> I just ran through that tutorial, downloading the linked bag, and it
>> works fine for me.  Did you set the use_sim_time parameter (step 4)
>> before starting gmapping (step 5)?
>>
>>        brian.
>>
>> On Tue, Jul 20, 2010 at 8:08 AM, Rishi Bedi <rbedi100@gmail.com> wrote:
>>> Hi,
>>> I'm trying to run the gmapping package, following the tutorial here:
>>> http://www.ros.org/wiki/slam_gmapping/Tutorials/MappingFromLoggedData
>>> .
>>> I'm getting errors at a few points along the way, however -- when I
>>> try to record my own bagfile from my Pioneer 2 (which I am
>>> teleoperating using a joystick), I repeatedly get this error:
>>> "[FATAL] [WallTime: 1279638142.894919030]: rosrecord::Record: could
>>> not write to file.  Check permissions and diskspace" My diskspace is
>>> definitely enough -- what permissions is it alluding to?
>>>
>>> I then tried just using the bagfile linked to in the tutorial, but
>>> gmapping outputs the following, repeatedly: "[ WARN] [WallTime:
>>> 1279638187.366396181]: TF_OLD_DATA ignoring data from the past for
>>> frame /base_link at time 126.2 according to authority
>>> /play_1279638095646529424". Using rosbag play to play the bagfile
>>> appears to be working, but it shows this:
>>> "RUNNING]  Bag Time:     35.500164   Duration: 0.900164 /
>>> 1239670987.745222   " <-- it's counting by 1/10, so that looks too
>>> big... it would take a while to count to that!
>>>
>>> Thanks,
>>> Rishi
>>>
>>> Rishi Bedi
>>> rbedi100@gmail.com
>>> _______________________________________________
>>> ros-users mailing list
>>> ros-users@code.ros.org
>>> https://code.ros.org/mailman/listinfo/ros-users
>>>
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