Error on publishing

[hilarytsai]

I tried to publish a space that had no problem before and got this error:

Does anyone know what this means? I haven't done anything different to my project since last time I published.

[hilarytsai]

Closing my browser and reloading it fixed this problem!

[johnshaughnessy]

I suspect what may have happened is that your browser had an older version of the code cached and when you refreshed, you fetched the latest code which included a fix for this bug. I've had this happen to me when I "reopen a closed tab" rather than re-navigating to the website.