vue cli3.0创项目报错‘This may cause things to work incorrectly. Make sure to use the same version for b’

 throw new Error(
  ^
Error:
Vue packages version mismatch:
- vue@2.6.12 (C:\Users\Administrator\AppData\Roaming\npm\node_modules\vue\dist\vue.runtime.common.js)
- vue-template-compiler@2.6.11 (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli\node_modules\vue-template-compiler\package.json)
This may cause things to work incorrectly. Make sure to use the same version for both.
If you are using vue-loader@>=10.0, simply update vue-template-compiler.
If you are using vue-loader@<10.0 or vueify, re-installing vue-loader/vueify should bump vue-template-compiler to the latest.
    at Object.<anonymous> (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli\node_modules\vue-template-compiler\index.js:10:9)
    at Module._compile (internal/modules/cjs/loader.js:1158:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
    at Module.load (internal/modules/cjs/loader.js:1002:32)
    at Function.Module._load (internal/modules/cjs/loader.js:901:14)
    at Module.require (internal/modules/cjs/loader.js:1044:19)
    at require (internal/modules/cjs/helpers.js:77:18)
    at Object.<anonymous> (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli\node_modules\vue-jscodeshift-adapter\src\parse-sfc.js:1:18)
    at Module._compile (internal/modules/cjs/loader.js:1158:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)