Multisync assertion failed (evo2sync)

[Mike Read]

Binary package hint: multisync0.90

Running Hardy Heron
This is msynctool version "0.19"
using OpenSync version "0.22"

When running msynctool --sync SDA, the output shown at bottom results (contacts and TODOs appear to get synced correctly).
Shown below is the configuration for the group SDA.

Groupname: SDA
Member 1: evo2-sync
 Configuration : <config>
  <address_path>default</address_path>
  <calendar_path>default</calendar_path>
  <tasks_path>default</tasks_path>
</config>

Member 2: synce-plugin
 Configuration : <config>
 <contact></contact>
 <todos></todos>
 <calendar></calendar>
 <file>/My Documents/</file>
</config>

Mapping Write Error: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Error writing entry 370002a0 to member 1: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Mapping Write Error: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Error writing entry 3a000078 to member 1: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Mapping Write Error: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Error writing entry 390003b1 to member 1: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Mapping Write Error: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Error writing entry 30000246 to member 1: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Mapping Write Error: Unable to create event: file e-cal.c: line 4238: assertion `ecal && E_IS_CAL (ecal)' failed
Member 1 of type evo2-sync committed all changes.
Member 2 of type synce-plugin committed all changes.
All clients have written
Member 2 of type synce-plugin just disconnected
Member 1 of type evo2-sync just disconnected
All clients have disconnected
The sync failed: Unable to write one or more objects
Error synchronizing: Unable to write one or more objects
Pipe closed! Exiting.
Pipe closed! Exiting.
$
$
$ msynctool --version

[Ron Obvious (dr-ronald-moore)]

I get very similar results - however I'm sync'ing (or rather, trying to sync) between gnoki and evolution (so I suspect the problem is with the evolution plugin and not (only) the synce plugin).