CRON expression is invalid Using Hangfire 1.7.6, CronEspresso 3.0.0



I am getting CRON expression is invalid for 0 0/2 * 1/1 * ? *

When I tested it in
It was able to convert it correctly.

Best Regards,


Last I checked Hangfire only supports cron expressions of 5 ‘fields’. Mind you I did notice the validation rules did get a lot stricter in recent releases. For instance some funny person recently added some jobs on one of my hangfire backed apps with 10/60 * * * * … Which makes utterly no sense really but worked fine on older versions.


Hi Hans_Engelen,

Thanks, any update / insight from the Hangfire team?

Best Regards,

#4 as @Hans_Engelen said.