vue.js报错:Module build failed: Error: No parser and no file path given, couldn't infer a parser.

ERROR  Failed to compile with 2 errors                                                                         12:00:33

 error  in ./src/App.vue

Module build failed: Error: No parser and no file path given, couldn't infer a parser.
    at normalize (C:UsersadminDesktop222demo
ode_modulesprettierindex.js:7051:13)
    at formatWithCursor (C:UsersadminDesktop222demo
ode_modulesprettierindex.js:10370:12)
    at C:UsersadminDesktop222demo
ode_modulesprettierindex.js:31115:15
    at Object.format (C:UsersadminDesktop222demo
ode_modulesprettierindex.js:31134:12)
    at Object.module.exports (C:UsersadminDesktop222demo
ode_modulesvue-loaderlib	emplate-compilerindex.js:80:23)

 @ ./src/App.vue 11:0-354
 @ ./src/main.js
 @ multi (webpack)-dev-server/client?http://localhost:8081 webpack/hot/dev-server ./src/main.js

 error  in ./src/components/HelloWorld.vue

Module build failed: Error: No parser and no file path given, couldn't infer a parser.
    at normalize (C:UsersadminDesktop222demo
ode_modulesprettierindex.js:7051:13)
    at formatWithCursor (C:UsersadminDesktop222demo
ode_modulesprettierindex.js:10370:12)
    at C:UsersadminDesktop222demo
ode_modulesprettierindex.js:31115:15
    at Object.format (C:UsersadminDesktop222demo
ode_modulesprettierindex.js:31134:12)
    at Object.module.exports (C:UsersadminDesktop222demo
ode_modulesvue-loaderlib	emplate-compilerindex.js:80:23)

 @ ./src/components/HelloWorld.vue 11:0-366
 @ ./src/router/index.js
 @ ./src/main.js
 @ multi (webpack)-dev-server/client?http://localhost:8081 webpack/hot/dev-server ./src/main.js

解觉方法：

npm i prettier@~1.12.0

重新运行：

npm run dev