setup.bash refering to package and states file not found

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Hello,

I am a Ubuntu 14.04 user using ROS Indigo. I am not sure what happened recently but when I do [In catkin workspace] source devel/setup.bash I get the following error message

bash: /home/dinu94/catkin_ws/src/rocon/src/rocon_app_platform/rocon_app_utilities/shells/env.bash: No such file or directory
bash: /home/dinu94/catkin_ws/src/rocon/src/rocon_tools/rocon_launch/shells/env.bash: No such file or directory
bash: /home/dinu94/catkin_ws/src/rocon/src/rocon_multimaster/rocon_test/shells/env.bash: No such file or directory
bash: /home/dinu94/catkin_ws/src/rocon/src/rocon_tools/rocon_python_comms/completion/rospairbash: No such file or directory

I had installed rocon months before and deleted in quite recently. I don't know how this polluted setup.bash . I can't understand the code and hence unable to fix it. Any help would be appreciated .

Thanks