function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
BHUVANAGIRI VS SRIKANTHBHUVANAGIRI VS SRIKANTH 

error id: TZSYELFO

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: TZSYELFO
Best Answer chosen by BHUVANAGIRI VS SRIKANTH
SandhyaSandhya (Salesforce Developers) 
Hi,

If you are working on reports and dashboards then you may get this error if you have made some changes in report and did not refresh the dashboard.Try to refresh the dashboard and then check for challenge.
 

Please mark it as solved if my reply was helpful. It will make it available for other as the proper solution.
 
Best Regards
Sandhya