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Amarendra KothaAmarendra Kotha 

Ref Id: GBAUVMIS - Unable to complete challenge 7 : Lightning Rollout Specialist

Hi,

I completed all the steps of Challenge 7 in Lightning Rollout Specialist Super badge thrice in different Trailhead Playgrounds. I am getting the following error 'Challenge Not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: GBAUVMIS
'. Following is the reference id GBAUVMIS.

Please let me know how to overcome this. Implementing the same challenges in multiple orgs is taking lot of time.

Thanks.
Rahul KumarRahul Kumar (Salesforce Developers) 
Hi, Amarendra, or Then I would suggest you log out of all the accounts and log in again and also clear your browser cookies and history. OR Another solution would try it in a different browser.
or Please refer the below link. Hope this helps you!

Please mark it as best answer if the information is informative.so that question is removed from an unanswered question and appear as a proper solution.

Thanks
Rahul Kumar
Rahul KumarRahul Kumar (Salesforce Developers) 
Hi,
 I simply made a new playground and went through the steps and when I got back to the step 7 I simply checked one mini step at a time instead of doing it all at once. It has passed.

Thanks
Rahul