Problem loading maps

[etsardou]

Hello!
I have a problem with muy STDR installation because whenever I try loading a map (with the launch file or within the GUI) I obtain an error like this:

[ INFO] [1416568108.200301586]: Loading map from image "/opt/ros/hydro/share/stdr_resources/maps/sparse_obstacles.png"

/opt/ros/hydro/lib/stdr_server/stdr_server_node: symbol lookup error:

/opt/ros/hydro/lib/libstdr_map_loader.so: undefined symbol:

_ZN10map_server15loadMapFromFileEPN8nav_msgs15GetMapResponse_ISaIvEEEPKcdbddPdb

[stdr_server-3] process has died [pid 2685, exit code 127, cmd /opt/ros/hydro/lib/stdr_server/stdr_server_node

/opt/ros/hydro/share/stdr_resources/maps/sparse_obstacles.yaml

__name:=stdr_server

__log:=/home/elena/.ros/log/b69c8e58-716e-11e4-88b4-002308cc6868/stdr_server-3.log].

log file:

/home/elena/.ros/log/b69c8e58-716e-11e4-88b4-002308cc6868/stdr_server-3*.log

How can I correct this error?
Thanks in advance,

Elena López Guillén
University of Alcalá (SPAIN)