Syntax Error: Error: PostCSS received undefined instead of CSS string

ERROR  Failed to compile with 1 error                                                                                                                                                    4:06:49 PM

 error  in ./src/views/campaign/dataReport.vue?vue&type=style&index=2&id=5691db33&lang=scss&scoped=true&

Syntax Error: Error: PostCSS received undefined instead of CSS string

node 版本问题