I followed kobuki's write your own controller tutorial and it seems going well, up to the stage where I wanted to test it.
I launched roslaunch kobuki_node minimal.launch followed by roslaunch kobuki_controller_tutorial bump_blink_app.launch --screen, and received the following error:

SUMMARY

PARAMETERS
* /rosdistro: indigo
* /rosversion: 1.11.20

NODES / bumpblinkcontroller (nodelet/nodelet)

auto-starting new master process[master]: started with pid [22106] ROSMASTERURI=http://localhost:11311

setting /runid to c4c4caac-6525-11e6-b6da-408d5c56557f process[rosout-1]: started with pid [22119] started core service [/rosout] process[bumpblinkcontroller-2]: started with pid [22122] [FATAL] [1471512360.732999671]: Failed to load nodelet '/bumpblinkcontrollerof typekobukicontrollertutorial/BumpBlinkControllerNodeletto managermobilebasenodeletmanager' [bumpblinkcontroller-2] process has died [pid 22122, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load kobukicontrollertutorial/BumpBlinkControllerNodelet mobilebasenodeletmanager bumpblinkcontroller/events/bumper:=mobilebase/events/bumper bumpblinkcontroller/commands/led1:=mobilebase/commands/led1 _name:=bumpblinkcontroller _log:=/home/cvil/.ros/log/c4c4caac-6525-11e6-b6da-408d5c56557f/bumpblinkcontroller-2.log]. log file: /home/cvil/.ros/log/c4c4caac-6525-11e6-b6da-408d5c56557f/bumpblink_controller-2*.log

I've tried rebuilding it a couple of times, it didn't help... I am also new to nodelets, so it might be connected to the problem.