I am facing this error "Ensure that you moved the Case object from the Available column to the Selected column" while i totally completed the challenge

HI @Akshay Patil I am a member of Trailhead Help, Could you please let us know if you have followed the above suggestion and the issue is resolved? If yes, please mark that response as the best answer which helped you to resolve and close this thread. 

If you are still facing any issues with this unit please let us know so that we can check and assist further.

Looking forward to your response :)

Thank you !