sir lakhan meghani (areya tech) I refered to be your video but not the complete rectify the error

Hi @Aadarsh Aadarah (Sri satya arupa degree college women)

I'm a member of Trailhead Help. Please let us know if you are still facing this issue while completing the challenge, if so please share the URL of the challenge. In case the issue is resolved, please post the solution which helped you to resolve your query and mark it "Best Answer" to close this thread. 

Thank you!