Hi, I folllowed the trailhead (Build a restaurant locator Lightning Component )  Leveraging the Contact Record Data and it also marks as completed. but when i try to see the output, I get the following error,
Unfortunately, there was a problem. Please try again. If the problem continues, get in touch with your administrator with the error ID shown here and any other related details. Something has gone wrong. Error in $A.getCallback() [SyntaxError: Unexpected end of JSON input] Failing descriptor: {markup://c:InTheArea}. Please try again.

Can anyone help me to undersatnd why am I getting this error.
Thank you