This question is identical to Resaving blog entries keeps failing except that I'm not finding any [error] or [warning] in my log entries.
I have changed my entry URL format for the section named Events from
{mainCategory.last().uri}/{slug}
to
{mainCategory.last().uri}/_entry
as described here: Is it possible to view 'Expired' entrys on the front end? and when I hit save on the section page, then it immediately gives the failed task: Resaving Events entries. Any thoughts?
UPDATE
OK, I did find this error: 2016/12/18 02:26:41 [error] [application] Encountered an error running task 422 (ResaveElements), step 2 of 197: Encountered the following validation errors when trying to save entry element "Transforming Work" with the ID "19": - URI "fort-collins/weekly/buddhist-meditation-classes/_entry" has already been taken.
I'm not sure quite what it means. There's only one entry named Transforming Work.
craft/storage/runtime/logs
for[error]
and you should see what's tripping it up.