dynamic reconfigure

edit

i get this error when i run a node.

azhar@Azhar:~/catkin_ws$ rosrun dynamic_tutorials server.py 
Traceback (most recent call last):
File "/home/azhar/catkin_ws/src/dynamic_tutorials/nodes/server.py", line 5, in <module>
  from dynamic_reconfigure.server import Server
File "/opt/ros/indigo/lib/python2.7/dist-packages/dynamic_reconfigure/server.py", line 49, in <module>
  from dynamic_reconfigure import DynamicReconfigureCallbackException
ImportError: cannot import name DynamicReconfigureCallbackException

background. The node server.py was working initially. However, i moved the package to another location temporarily, as i wanted to test out another package from github, with the same name.

I git-clone the new package, catkin_make and tried to run . Once i finished using it, i deleted it and moved my initial package back.

I get this error again when i try to run the node. So , i believe the package i downloaded messed up some of the files.(because it has the same name)

Can anyone suggest any ways on how to fix this? Thank you!

My package: https://github.com/azhar92/dynamic_re...

Edit: i went to the /opt/ros/indigo/lib/python2.7/dist-packages/dynamic_reconfigure/server.py file and commented the from dynamic_reconfigure import DynamicReconfigureCallbackException.

My dynamic reconfigure works just like last time, but i fear it might have other consequences.

Can someone knowledgable about dynamic_reconfigure explain to me the significance of the DynamicReconfigureCallbackException? and does removing it leads t other problems?