Hello all, I was trying tutorial of Navigation stack setup. I have added move_base dependency in the manifest file and hokuyo_node. When i tried to compile i get permission denied error like below. I have already exported ROS path in my own setup.sh file. [ rosmake ] [ 54 of 62 Completed ] [rosmake-0] >>> base_local_planner >>> [ make ] [rosmake-1] <<< eskorta_laser_conf <<< [PASS] [ 1.34 seconds ] [ rosmake ] [ 55 of 62 Completed ] [rosmake-1] >>> navfn >>> [ make ] [rosmake-1] <<< navfn <<< ROS_NOBUILD in package navfn [ rosmake ] [ 56 of 62 Completed ] [rosmake-1] >>> clear_costmap_recovery >>> [ make ] [rosmake-1] <<< clear_costmap_recovery <<< ROS_NOBUILD in package clear_costmap_recovery [ rosmake ] All 19 lines {--------------------------------------------------------------------------- ---- Must clear CMake cache for now. rm -f build/CMakeCache.txt && make all make[1]: Entering directory `/opt/ros/boxturtle/stacks/navigation/base_local_planner' mkdir -p bin cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=`rospack find rosbuild`/rostoolchain.cmake .. [rosbuild] Building package base_local_planner [rosbuild] Cached build flags older than manifests; calling rospack to get flags [rosbuild] Including /opt/ros/boxturtle/ros/core/roscpp/cmake/roscpp.cmake [rosbuild] Including /opt/ros/boxturtle/ros/core/rospy/cmake/rospy.cmake [rosbuild] Including /opt/ros/boxturtle/stacks/ros_experimental/rosjava/cmake/rosjava.cmake [rosbuild] Including /opt/ros/boxturtle/stacks/ros_experimental/rosoct/cmake/rosoct.cmake [rosbuild] Including /opt/ros/boxturtle/stacks/ros_experimental/roslisp/cmake/roslisp.cmake [rosbuild] Including /opt/ros/boxturtle/stacks/ros_experimental/rosclj/cmake/rosclj.cmake -- Configuring done CMake Error: Unable to open cache file for save. /opt/ros/boxturtle/stacks/navigation/base_local_planner/CMakeCache.txt CMake Error: : System Error: Permission denied make[1]: *** [all] Error 1 make[1]: Leaving directory `/opt/ros/boxturtle/stacks/navigation/base_local_planner' ---------------------------------------------------------------------------- ---} [ rosmake ] Output from build of package base_local_planner written to: [ rosmake ] /home/rootx/.ros/rosmake/rosmake_output-20100606-105821/base_local_planner/b uild_output.log [rosmake-0] <<< base_local_planner <<< [FAIL] [ 3.09 seconds ] [ rosmake ] Halting due to failure in package base_local_planner. [ rosmake ] Waiting for other threads to complete. [ rosmake ] Summary output to directory [ rosmake ] /home/rootx/.ros/rosmake/rosmake_output-20100606-105821 Please let me know if there is any existing solution. Regards, Prasad Dixit