i've read about this... this is the first time i have experienced it. what do i do?

[Shridhar Daithankar]

On मंगळवार, २५ सप्टेंबर, २०१८ १२:४४:४६ म.पू. IST salamandir at hybridelephant.com 
wrote:
> kontact 5.7.3, kubuntu 18.04
> 
> i've read about this happening on this list many times, but as it never
> happened to me, i didn't pay attention to what to do to fix it.
> 
> i've been struck with the "Retrieving Folder Contents -- Please wait..."
> problem: i start contact and, instead of seeing individual messages, i
> see "Retrieving Folder Contents -- Please wait..." pretty much
> regardless of what i do.
> 
> it seems to go away, sometimes: i can start it, sometimes, without that
> message, but as soon as i move a message to a new location, or delete a
> message, i get "Retrieving Folder Contents -- Please wait...".
> 
> please help! 8/

Try

$ akonadictl restart

HTH

-- 
Regards
 Shridhar