VueCannot read property 'component' of undefined online solution

problem description

vue-router.js?dfba:1800 Uncaught TypeError: Cannot read property "component" of undefined

the environmental background of the problems and what methods you have tried

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related codes

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what result do you expect? What is the error message actually seen?

Apr.11,2021

solved
version problem
Bar just change the version!


vue.runtime.esm.js?2b0e:1394 Uncaught (in promise) TypeError: Cannot read property 'components' of undefined

at checkComponents (vue.runtime.esm.js?2b0e:1394)
at mergeOptions (vue.runtime.esm.js?2b0e:1514)
at mergeOptions (vue.runtime.esm.js?2b0e:1535)
at Function.Vue.extend (vue.runtime.esm.js?2b0e:5159)
at eval (vue-router.esm.js?8c4f:2066)
at eval (vue-router.esm.js?8c4f:2146)
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3ef0d-2b197.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3ef0d-2b197.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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