Bundle Error: ‘import’ and ‘export’ may appear only with ‘sourceType: module’

[arvinxx]

Hi, I’m using block sdk to build a custom app. But I meet an error after I install an modules @antv/x6 (repo)

Bundle Error: 'import' and 'export' may appear only with 'sourceType: module'

I have checked the antv/x6 module has a es5 version in the /lib directory. And I try to import this modules use code below

import { Graph } from '@antv/x6/lib';

But still show the bundle error