Problems encountered in superset 0.28.1 integrated echarts

ERROR in ./src/visualizations/index.js 85:19
Module parse failed: Unexpected token (85:19)
You may need an appropriate loader to handle this file type.
| var loadNvd3 = function () {
|   function loadNvd3() {
>     return loadVis(import( /* webpackChunkName: "nvd3_vis" */'./nvd3/adaptor.jsx'));
|   }
| 
 @ ./src/modules/AnnotationTypes.js 17:22-50
 @ ./src/chart/chartAction.js
 @ ./src/explore/components/ExploreViewContainer.jsx
 @ ./src/explore/App.jsx
 @ ./src/explore/index.jsx
 @ multi babel-polyfill ./src/explore/index.jsx

Hello, every time I run ‘npm run dev’ to 92% it will report this error, I would like to ask why this is, looking forward to your guidance. Thanks

[zpi1223]

@Llyfighting Can you help me? when i run <npm run dev> occur an question like your blog, but i run <npm intall> can’t pass it, so i need help, can you give your contact information. TKS

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