When trying to download package from PWABuilder I receive the following error message:
Error: Failed. Status code 500
System.InvalidOperationException: Couldn't find a suitable base image from which to generate all Windows package images. Please ensure your web app manifest has a square PNG image 512x512 or larger.
I tried various solutions found on Internet, which only confirm that my images and manifest file are in good order. Any help would be greatly appreciated.