start value has mixed support, consider using flex-start instead报错解决

postcss-loader的坑=＞处理“start value has mixed support, consider using flex-start instead”编译警告

报错具体内容：

 warning  in ./src/views/olympicdataquery/personnellist/personaldetails/personaldetails.vue?vue&type=style&index=0&id=87659618&scoped=true&lang=scss&

Module Warning (from ./node_modules/postcss-loader/src/index.js):
Warning

(97:7) start value has mixed support, consider using flex-start instead

 @ ./node_modules/vue-style-loader??ref--8-oneOf-1-0!./node_modules/css-loader/dist/cjs.js??ref--8-oneOf-1-1!./node_modules/vue-loader/lib/loaders/stylePostLoader.js!./node_modules/postcss-loader/src??ref--8-oneOf-1-2!./node_modules/sass-loader/dist/cjs.js??ref--8-oneOf-1-3!./node_modules/cache-loader/dist/cjs.js??ref--0-0!./node_modules/vue-loader/lib??vue-loader-options!./src/views/olympicdataquery/personnellist/personaldetails/personaldetails.vue?vue&type=style&index=0&id=87659618&scoped=true&lang=scss& 4:14-524 15:3-20:5 16:22-532
 @ ./src/views/olympicdataquery/personnellist/personaldetails/personaldetails.vue?vue&type=style&index=0&id=87659618&scoped=true&lang=scss&
 @ ./src/views/olympicdataquery/personnellist/personaldetails/personaldetails.vue
 @ ./src/views sync ^\.\/.*$
 @ ./src/store/modules/permission.js
 @ ./src/store/index.js
 @ ./src/main.js
 @ multi (webpack)-dev-server/client?http://192.168.1.78:6206&sockPath=/sockjs-node (webpack)/hot/dev-server.js ./src/main.js