Custom Data Source refresh problem

Hello community,

I haveused the following Custom Data Source example "com.sap.sample.csvdatasource" in Eclipseandeverything worksso far Design Studio starts and I can see the data. However,if Ichange the CSVfile URLDesign Studiostarts torefresh andwill not stop. ineclipseI getthe following message

MESSAGE Error message: setDataCell call with 2 coodinates, but expected 3 Line Number: 2856 Pos: undefined Function: function sapbi_phx_process_json(d,a){var b

Anyone know the reason?

Thanks

Ihsan