How to Correct wrong Environment setup?

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I was trying to set up my environment variables and typed in the following code:

echo "source /opt/ros/electric/setup.bash" >> ~/.bashrc
source ~/.bashrc

Later i realised i only had groovy, so i changed electric in above to groovy but whenever i try to run ros or baxter, always this message gets displayed that

bash: /opt/ros/electric/setup.bash: No such file or directory

My question is how to get the wrong environment set-up command disabled so that the irritating message is not displayed again and again? Thanks in advance.