vue2项目升级vue3报错

18:01:45.485 [Vue warn]: Property "slideTransition" was accessed during render but is not defined on instance.
18:01:45.485 at <Index pageId=1 pagePath="pages/tabbar/index" pageQuery= {} > WARN
18:01:45.485 [Vue warn]: Unhandled error during execution of render function
18:01:45.485 at <Index pageId=1 pagePath="pages/tabbar/index" pageQuery= {} > WARN