the following instruction
let newSlide = await pres.addSlide();
works for PPTX and for PPT gives the error
“Cannot read property ‘Relationships’ of undefined”
Environment:
- OS: Windows 10.0.18363 N/A Build 18363
- Node: 12.4.0
- npm: 6.9.0
- npm -v Nodejs-pptx
6.9.0