The most recent version of ScraperWiki depends on Poppler (or so the GitHub says). Unfortunately, it only specifies how to get it on macOS and Linux, not Windows.
A
This is what I did.
Install msys2
Open msys2 shell and then run:
pacman -Syu
pacman -S mingw-w64-x86_64-poppler
Open MingW64 Shell and access poppler binaries
The binaries are installed at: C:\msys64\mingw64\bin