Kontact 4.8.2 & Kubuntu 12.04: how to import local calendar and to-do list into Google?

[Bas Roufs - Nederlandstalige boodschap]

Hello everybody,

at present, I have 2 calendars in Kontact: a local one and 
"akonadi_gcal_resource" (Akonadi/ Google.) 
Already several months, I am trying to find out how I could import the local 
calendar and to-do list into "akonadi_gcal_resource": via KONTACT > FILE > 
import > import calendar > import into existing calendar. However, I still get 
stuck at this point:




The "select calendar" dialogue window does not seem to offer to select any 
local calendar to import. 

Do you have any clue?
Respectfully yours,
Bas 
-- 
Bas G. Roufs MA
Van 't Hoffstraat 1
NL-3514 VT Utrecht
The Netherlands
E. BasRoufs at gmail.com
Mob. +31 6 446 835 10
Tel. +31 30 785 40
Skype, Google Talk: basroufs
Websites in construction:
BasRoufs.eu 
Viaconsensus.nl 
RainbowGathering.eu 
Open source OS: Linux Kubuntu 12.04 LTS. 
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