Version:            (using KDE 4.4.0)
OS:                Linux
Installed from:    openSUSE RPMs

If I add an iCalender resource to akonaki it processes the file, adds entries but the entries have no payload. I've used the test_pilot.ics file from kdepimlibs/kcal/tests/data/. Please let me know if you need more information. You can find me as 'gladiac' in kde-devel.

http://www.cynapses.org/tmp/ical.png

Here is the debug info from akonadiconsole:

0x663e60 * OK Akonadi Almost IMAP Server [PROTOCOL 23] 
0x663e60 0 LOGIN "akonadi_ical_resource_14" 
0x663e60 0 OK User logged in 
0x663e60 1 RESSELECT "akonadi_ical_resource_14" 
0x663e60 1 OK akonadi_ical_resource_14 selected 
0x663e60 2 LSUB 0 1 (RESOURCE akonadi_ical_resource_14) () 
0x663e60 2 OK List completed 
0x663e60 3 BEGIN 
0x663e60 3 OK Begin completed 
0x663e60 4 LSUB 0 INF (RESOURCE akonadi_ical_resource_14) (ANCESTORS 1) 
0x663e60 4 OK List completed 
0x663e60 5 CREATE "akonadi_ical_resource_14" 0 (MIMETYPE (text/calendar application/x-vnd.akonadi.calendar.event application/x-vnd.akonadi.calendar.todo application/x-vnd.akonadi.calendar.journal application/x-vnd.akonadi.calendar.freebusy) REMOTEID "file:///home/asn/Documents/test_pilot.ics" ENTITYDISPLAY "(\"test_pilot.ics\" \"office-calendar\" \"\" ())" AccessRights "wcdW" CACHEPOLICY (INHERIT true)) 
0x663e60 * 4 0 (NAME "akonadi_ical_resource_14" MIMETYPE (text/calendar application/x-vnd.akonadi.calendar.event application/x-vnd.akonadi.calendar.todo application/x-vnd.akonadi.calendar.journal application/x-vnd.akonadi.calendar.freebusy) REMOTEID "file:///home/asn/Documents/test_pilot.ics" RESOURCE "akonadi_ical_resource_14" CACHEPOLICY (INHERIT true INTERVAL -1 CACHETIMEOUT -1 SYNCONDEMAND false LOCALPARTS (ALL)) ENTITYDISPLAY "(\"test_pilot.ics\" \"office-calendar\" \"\" ())" AccessRights "wcdW") 
0x663e60 5 OK CREATE completed 
0x663e60 6 COMMIT 
0x663e60 6 OK Commit completed 
0x663e60 7 LSUB 0 INF (RESOURCE akonadi_ical_resource_14) () 
0x663e60 * 4 0 (NAME "akonadi_ical_resource_14" MIMETYPE (text/calendar application/x-vnd.akonadi.calendar.event application/x-vnd.akonadi.calendar.todo application/x-vnd.akonadi.calendar.journal application/x-vnd.akonadi.calendar.freebusy) REMOTEID "file:///home/asn/Documents/test_pilot.ics" RESOURCE "akonadi_ical_resource_14" CACHEPOLICY (INHERIT true INTERVAL -1 CACHETIMEOUT -1 SYNCONDEMAND false LOCALPARTS (ALL)) ENTITYDISPLAY "(\"test_pilot.ics\" \"office-calendar\" \"\" ())" AccessRights "wcdW") 
0x663e60 7 OK List completed 
0x663e60 8 SELECT SILENT 4 
0x663e60 8 OK Completed 
0x663e60 9 FETCH 1:* FULLPAYLOAD ALLATTR CACHEONLY EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 9 OK FETCH completed 
0x663e60 10 BEGIN 
0x663e60 10 OK Begin completed 
0x663e60 11 APPEND 4 0 (\MimeType[application/x-vnd.akonadi.calendar.event] "\\RemoteId[KOrganizer-1345486115.965]") {0} 
0x63e850 + Ready for literal data (expecting 0 bytes) 
0x663e60 11 [UIDNEXT 135 DATETIME "10-Feb-2010 18:47:39 +0000"] 
0x663e60 11 OK Append completed 
0x663e60 12 COMMIT 
0x663e60 12 OK Commit completed 
0x634ff0 6 LSUB 0 0 () (ANCESTORS INF) 
0x634ff0 6 OK List completed 
0x634ff0 7 LSUB 4 0 () (ANCESTORS INF) 
0x634ff0 * 4 0 (NAME "akonadi_ical_resource_14" MIMETYPE (text/calendar application/x-vnd.akonadi.calendar.event application/x-vnd.akonadi.calendar.todo application/x-vnd.akonadi.calendar.journal application/x-vnd.akonadi.calendar.freebusy) REMOTEID "file:///home/asn/Documents/test_pilot.ics" RESOURCE "akonadi_ical_resource_14" CACHEPOLICY (INHERIT true INTERVAL -1 CACHETIMEOUT -1 SYNCONDEMAND false LOCALPARTS (ALL)) ANCESTORS ((0 "")) ENTITYDISPLAY "(\"test_pilot.ics\" \"office-calendar\" \"\" ())" AccessRights "wcdW") 
0x634ff0 7 OK List completed 
0x634ff0 8 SELECT SILENT 4 
0x634ff0 8 OK Completed 
0x634ff0 9 FETCH 1:* FULLPAYLOAD ANCESTORS INF EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 13 UID FETCH 135 CACHEONLY EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS ()) 
0x663e60 13 OK UID FETCH completed 
0x663e60 14 UID STORE 135 NOREV (REMOTEID.SILENT "KOrganizer-1345486115.965" PLD:RFC822.SILENT NIL) 
0x663e60 14 OK DATETIME "10-Feb-2010 18:47:39 +0000" STORE completed 
0x634ff0 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS () ANCESTORS ((4 "file:///home/asn/Documents/test_pilot.ics") (0 "")) PLD:RFC822 NIL) 
0x634ff0 9 OK FETCH completed 
0x634ff0 10 SELECT SILENT 4 
0x634ff0 10 OK Completed 
0x634ff0 11 FETCH 1:* FULLPAYLOAD ANCESTORS INF EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 16 UID FETCH 135 CACHEONLY EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS ()) 
0x663e60 16 OK UID FETCH completed 
0x663e60 17 UID STORE 135 NOREV (REMOTEID.SILENT "KOrganizer-1345486115.965" PLD:RFC822.SILENT NIL) 
0x663e60 17 OK DATETIME "10-Feb-2010 18:47:39 +0000" STORE completed 
0x634ff0 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS () ANCESTORS ((4 "file:///home/asn/Documents/test_pilot.ics") (0 "")) PLD:RFC822 NIL) 
0x634ff0 11 OK FETCH completed 
0x6b6ae0 1 UID FETCH 135 FULLPAYLOAD ALLATTR EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 19 UID FETCH 135 CACHEONLY EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS ()) 
0x663e60 19 OK UID FETCH completed 
0x663e60 20 UID STORE 135 NOREV (REMOTEID.SILENT "KOrganizer-1345486115.965" PLD:RFC822.SILENT NIL) 
0x663e60 20 OK DATETIME "10-Feb-2010 18:47:39 +0000" STORE completed 
0x6b6ae0 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS () PLD:RFC822 NIL) 
0x6b6ae0 1 OK UID FETCH completed 
0x6b6ae0 2 UID FETCH 135 FULLPAYLOAD ALLATTR EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 22 UID FETCH 135 CACHEONLY EXTERNALPAYLOAD (UID REMOTEID COLLECTIONID FLAGS SIZE DATETIME) 
0x663e60 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS ()) 
0x663e60 22 OK UID FETCH completed 
0x663e60 23 UID STORE 135 NOREV (REMOTEID.SILENT "KOrganizer-1345486115.965" PLD:RFC822.SILENT NIL) 
0x663e60 23 OK DATETIME "10-Feb-2010 18:47:39 +0000" STORE completed 
0x6b6ae0 * 135 FETCH (UID 135 REV 0 REMOTEID "KOrganizer-1345486115.965" MIMETYPE "application/x-vnd.akonadi.calendar.event" COLLECTIONID 4 SIZE 0 DATETIME "10-Feb-2010 18:47:39 +0000" FLAGS () PLD:RFC822 NIL) 
0x6b6ae0 2 OK UID FETCH completed