the data and config of the examples don't work very well.

[nanli-emory]

Folder Name	Data Type	Is Work	Potential Reason
examples/Druid	csv	false	missing data source
examples/map	markerMap [csv+geojson]	false	no such file or directory, open 'config/dashboard.json'
examples/marker_map	markerMap [csv+geojson]	true	N/A
examples/TCIAMultiView	csv	false	missing data source
examples/NewDataSourceConfig	csv	false	something error [join key]
examples/TitanicSurvivors	json	true	N/A