Visualization type is missing after upgrade

Hello,
I upgrade es from 2 to 5 and kibana from 4 to 5. My old Kibana 4 had some searchs, visualizations and a dashboard. I didn't backup them. My failure.

Now, Kibana 5 shows my searchs and the Dashboard skeletron, but no visualizations. If I click to Visualize, there is a red message: "Saved Visualization Service: Visualization type is missing. Please add a type to this visualization."

Can I do something to bring my old visualizations back?

Thank you,
darkelf

If you go into management and view a visualization object's raw data, do you see a type attribute? If not, try adding it back in and see if that helps. It'll be something like area, line, etc.