Couldn't save map file [closed]
I'm running a fresh indigo install on Ubuntu 14.04. I'm going through the indigo turtlebot simulation mapping and navigation tutorial (found here). I get this error when trying to save my map:
$ rosrun map_server map_saver -f mymap
[ INFO] [1455210144.655511470]: Waiting for the map
[ INFO] [1455210144.863940939]: Received a 512 X 512 map @ 0.050 m/pix
[ INFO] [1455210144.863974294]: Writing map occupancy data to mymap.pgm
[ERROR] [1455210144.864011886]: Couldn't save map file to mymap.pgm
I've not been able to find any information on this so some guidance would be appreciated. Thank you.
EDIT1:
So, saving using the absolute path seems to have resolved the issue with saving...
But, I receive this error when trying to load that saved file.
I can cd in to that directory and see the .pgm and .yaml files, so they're there...
process[move_base-5]: started with pid [7198]
terminate called after throwing an instance of 'std::ios_base::failure'
what(): basic_filebuf::underflow error reading the file
[ WARN] [1455230430.987174577, 512.240000000]: Timed out waiting for transform from base_footprint to map to become available before running costmap, tf error: . canTransform returned after 512.24 timeout was 0.1.
[map_server-1] process has died [pid 7174, exit code -6, cmd /opt/ros/indigo/lib/map_server/map_server /home/developer-admin/indigo_workspace/sandbox/maps/ __name:=map_server __log:=/home/developer-admin/.ros/log/3fab6fa6-d10f-11e5-82df-d850e6c4e2f6/map_server-1.log].
log file: /home/developer-admin/.ros/log/3fab6fa6-d10f-11e5-82df-d850e6c4e2f6/map_server-1*.log
[ WARN] [1455230436.087845155, 517.340000000]: Timed out waiting for transform from base_footprint to map to become available before running costmap, tf error: . canTransform returned after 0.1 timeout was 0.1.
EDIT2:
This is the command I use to try to open the saved map file... it uses the absolute path to where the map file is saved.
roslaunch turtlebot_gazebo amcl_demo.launch map_file:=/home/developer-admin/indigo_workspace/sandbox/maps/
This is a permission problem. Try to save in another place.
Ok. That seems to have done it. I should have read/write permissions across the board... but I guess not. Thanks. ... but now it won't open the map file.
@joe.s Write the command which you use to open a map file.
@nampi
and added above
roslaunch turtlebot_gazebo amcl_demo.launch map_file:=/home/developer-admin/indigo_workspace/sandbox/maps/
The right command is: roslaunch turtlebot_gazebo amcl_demo.launch map_file:=/home/developer-admin/indigo_workspace/sandbox/maps/mymap.yaml
@nampi
When doing that, I receive the error:
Map_server could not open /home/developer-admin/indigo_workspace/sandbox/maps/mymap.yaml.Use the full path in the first command too.
@nampi
alright, it loaded this time... although I get a
You must specify at least three points for the robot footpinrt, reverting to previous footprinterror... I'll search for that and see what's going on.Thanks for the help.