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SamCalvoSamCalvo 

Unexpected error - Lightning Experience Rollout Specialist superbadge

Hi,

I am working on a superbadge and I'm getting this error I can't fix.

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:
DBCIMLLO

This happens on Step#6.
NagendraNagendra (Salesforce Developers) 
Hi Sam,

Sorry for this issue you are encountering.

May I request you please confirm if you are using a brand new developer org for validating the challenge?

If you are using a brand new developer org then please double check that your org doesn't have a namespace enabled.If that doesn't help please give a try by restarting the batch

Still, if the problem persists log out of all accounts and log in once again in a different browser by clearing the cache and cookies which should probably do the trick.

Please let us know if this helps.

Kindly mark this as solved if it's resolved

if you declare any class or interface or method 

Thanks,
Nagendra