"Quartz Scheduler [RuoyiScheduler] 后端启动报错

Exception in thread "Quartz Scheduler [RuoyiScheduler]" org.springframework.scheduling.SchedulingException: Could not start Quartz Scheduler after delay; nested exception is org.quartz.SchedulerException: The Scheduler cannot be restarted after shutdown() has been called.后端启动报错

1、应该是你没有刷定时任务相关的表或定时任务表出现了脏数据，尝试清空qrtz前缀表数据再试试中

2、8080tomcat端口被占用，换用其他端口