Cannot read property 'src' of null

[lianghuilin]

download dependencies success，but page is empty，error message like this：

No layout: index.html

Uncaught TypeError: Cannot read property 'src' of null
at Module. (commons.js:87)
at webpack_require (content.js:1)
at Object. (commons.js:87)
at webpack_require (content.js:1)
at Object. (commons.js:87)
at webpack_require (content.js:1)
at Object. (commons.js:87)
at webpack_require (content.js:1)
at Object. (commons.js:87)
at webpack_require (content.js:1)