我将使用@amcharts/amcharts4@4.3.5 的应用程序更新为 Angular 8，现在编译时遇到问题。
已将 amcharts 更新至 4.4.10 版。但问题依然存在。
ERROR in ./node_modules/@amcharts/amcharts4/.internal/core/export/Export.js 68:24
Module parse failed: Unexpected token (68:24)
You may need an appropriate loader to handle this file type.
| switch (_a.label) {
| case 0: return [4 /*yield*/, Promise.all([
> import(/* webpackChunkName: "pdfmake" */ "pdfmake/build/pdfmake.js"),
| import(/* webpackChunkName: "pdfmake" */ "../../pdfmake/vfs_fonts")
| ])];