无法在PDFmake中导入angular8？

Question

在我的应用程序中，我尝试开发将角格式转换为PDF格式的方法，我在stackblitz中看到了一个例子，但是当我试图在本地遵循相同的代码时，导入就不起作用了？错误为could not find the declaration for "pdfmake/build/pdfmake"

import pdfMake from "pdfmake/build/pdfmake";
import pdfFonts from "pdfmake/build/vfs_fonts";
pdfMake.vfs = pdfFonts.pdfMake.vfs;

更新:我已经尝试安装“@type/pdfmake”来修复这个问题。它部分修复了，但在"pdfmake.vfs“中抛出了cannot assign to vfs because it is readonly property错误

import * as pdfMake from "pdfmake/build/pdfmake";
import * as  pdfFonts from "pdfmake/build/vfs_fonts";
pdfMake.vfs= pdfFonts.pdfMake.vfs;

Answer 1

请试试这个，它对我有用：

import * as pdfMake from "pdfmake/build/pdfmake";
import * as pdfFonts from 'pdfmake/build/vfs_fonts';
(pdfMake as any).vfs = pdfFonts.pdfMake.vfs;