Module build failed : Error : Vue packages version mismatch:

Vue packages version mismatch:

- vue@2.7.15 (E:\Workspace_ce\erp\erp-web\node_modules\vue\dist\vue.runtime.common.js)
- vue-template-compiler@2.6.11 (E:\Workspace_ce\erp\erp-web\node_modules\vue-template-compiler\package.json)

【问题解决了，我很不喜欢 VUE 这个部署方式！！！！】

1)npm run serve

E:\Workspace_ce\erp\erp-web>npm run serve

> vue-antd-jeecg@2.2.0 serve E:\Workspace_ce\erp\erp-web
> vue-cli-service serve

Module build failed (from ./node_modules/@vue/cli-service/node_modules/vue-loader/lib/loaders/templateLoader.js):
Error:

Vue packages version mismatch:

- vue@2.7.15 (E:\Workspace_ce\erp\erp-web\node_modules\vue\dist\vue.runtime.common.js)
- vue-template-compiler@2.6.11 (E:\Workspace_ce\erp\erp-web\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> (E:\Workspace_ce\erp\erp-web\node_modules\vue-template-compiler\index.js:10:9)
    at Module._compile (internal/modules/cjs/loader.js:1151:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1171:10)
    at Module.load (internal/modules/cjs/loader.js:1000:32)
    at Function.Module._load (internal/modules/cjs/loader.js:899:14)
    at Module.require (internal/modules/cjs/loader.js:1040:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.module.exports (E:\Workspace_ce\erp\erp-web\node_modules\@vue\cli-service\node_modules\vue-loader\lib\loaders\templateLoader.js:22:40)

 @ ./src/components/jeecgbiz/JSelectRole.vue?vue&type=template&id=24ad3162&scoped=true 1:0-469 1:0-469
 @ ./src/components/jeecgbiz/JSelectRole.vue
 @ ./src lazy ^\.\/components.*$ namespace object
 @ ./src/utils/util.js
 @ ./src/permission.js
 @ ./src/main.js
 @ multi (webpack)-dev-server/client?http://192.168.1.4:3000/sockjs-node (webpack)/hot/dev-server.js ./src/main.js

 error  in ./src/components/jeecgbiz/JSelectMultiUser.vue?vue&type=template&id=3e5c3c68&scoped=true

3）npm install vue@2.6.11 --save -g

Microsoft Windows [版版本本 10.0.19045.2965]
(c) Microsoft Corporation。。保保留留所所有有权权利利。。

C:\Users\Administrator>e:

E:\>
E:\>
E:\>cd E:\Workspace_ce\erp\erp-web

E:\Workspace_ce\erp\erp-web>
E:\Workspace_ce\erp\erp-web>
E:\Workspace_ce\erp\erp-web>npm install vue@2.6.11 --save -g
+ vue@2.6.11
added 1 package from 1 contributor in 1.345s

E:\Workspace_ce\erp\erp-web>