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Surabhi Jha 4Surabhi Jha 4 

There was an unhandled exception. Please reference ID: MQAMWAOS. Error: NoMethodError. Message: undefined method `[]' for nil:NilClass


There was an unhandled exception. Please reference ID: MQAMWAOS. Error: NoMethodError. Message: undefined method `[]' for nil:NilClass
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Ajay K DubediAjay K Dubedi
Hi Surabhi,

I have gone through your issue. This is a very known issue and has been faced by a lot of people. 
Even cases have also been raised to solve this as you can see in below link - 

https://success.salesforce.com/answers?id=9063A000000a94BQAQ

Though if you need just to complete your badge please use the workaround.
Delete all the components from the dashboard and save it with a proper name. Then re-check the challenge.


I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too.

Thanks and Regards,
Ajay Dubedi
www.ajaydubedi.com