Hamersley notebook not json error

[markdlindsay]

When executing the Hamersley map processing notebook, the following error appears.

FYI both "0 Test" and the "...leaflet..." example work.

[yohanderose]

Heyo, JSON is a pretty finicky file format. The error is usually a syntax issue somewhere in the raw notebook file. See here https://stackoverflow.com/a/35460153/8490364