Hello Sam,
Thanks for the reply. I had replace the original 'guid' value 'ChicletSlicer1448559807354' by a new value in 192 files(all of the files contain ChicletSlicer1448559807354). Also i change the name in pbiviz.json. Then I run 'pbiviz package'. Then I import the new Chiclet slicer. It has the same problem as just changing the 'guid' value in pbiviz.json.
My question is, why the original chicletslicer.pbiviz could work correctly by just simply import it but the same original source code doesn't work in developer visual mode.
Many thanks,
Jason