vue Syntax Error: Unexpected token {

> music@1.0.0 dev F:\music\music
> node build/dev-server.js

> Starting dev server...
ERROR Failed to compile with 2 errors14:30:11

error in ./src/App.vue

Syntax Error: Unexpected token {

@ ./src/main.js 4:0-24
@ multi ./build/dev-client ./src/main.js

error in ./src/components/HelloWorld.vue

Syntax Error: Unexpected token {

@ ./src/router/index.js 3:0-49
@ ./src/main.js
@ multi ./build/dev-client ./src/main.js

> Listening at http://localhost:8080

安装"vue-loader": "11.1.4",可解决

npm uninstall --save-dev vue-loader    //删除vue-loader

npm install --save-dev vue-loader@11.1.4 //安装vue-loader