MODIFICATION_FAILED in Lightning 0.9

For discussing the Mozilla Calendar, Sunbird and Lightning projects.
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MikkyX
Posts: 4
Joined: November 30th, 2005, 2:50 am

MODIFICATION_FAILED in Lightning 0.9

Post by MikkyX »

'lo all,
I've just installed Lightning 0.9 into Thunderbird 2.0.0.17. Using it to maintain a task list, not using the calendar at all (except to mark pay day!) and I'm not syncing with any remote calendars. It generally works fine for a while and then out of nowhere, whenever I try to modify a task I get the error "MODIFICATION_FAILED". I then close and restart Thunderbird, and it works fine again.

Is there a fix for this?
MikkyX
Posts: 4
Joined: November 30th, 2005, 2:50 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by MikkyX »

Just done it again, I looked in the Error Console and found this:
Error: An error occurred when writing to the calendar Home! Error code: MODIFICATION_FAILED. Description:
Source File: file:///C:/Documents%20and%20Settings/Owner/Application%20Data/Thunderbird/Profiles/b4k6gdl7.default/extensions/%7Be2fda1a4-762b-4020-b5ad-a41df1933103%7D/components/calItemModule.js -> file:///C:/Documents%20and%20Settings/Owner/Application%20Data/Thunderbird/Profiles/b4k6gdl7.default/extensions/%7Be2fda1a4-762b-4020-b5ad-a41df1933103%7D/js/calCalendarManager.js
Line: 952
grzz76
Posts: 110
Joined: October 2nd, 2004, 7:09 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by grzz76 »

Having the same problem. I'm using Lightning and accessing a calendar on a remote server. I also can't delete tasks. I try, but when I reload, the task comes back. Any solutions would be appreciated.
MikkyX
Posts: 4
Joined: November 30th, 2005, 2:50 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by MikkyX »

I've also noticed since writing this topic that when this error comes up if I'm marking a task as completed (via the tickbox in the task list), I will get the error - but then I can restart Thunderbird and it DID save the change, or even if I just tick "Show completed Tasks" and then untick it again, the status change HAS been saved.....
chk25
Posts: 10
Joined: November 7th, 2006, 2:56 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by chk25 »

Hi,

I just installed Lightning. Looks like a great tool. Unfortunately I have the same error when I connect to my Google calendar. I'm just wondering, if somebody has a solution. I tried to delete all my passwords of email accounts, reinstalled it, recreated the iCal link. No success. When doing any modification I get the error and then the calendar is set to readonly.

cu Christian
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ssitter
Posts: 2495
Joined: October 19th, 2007, 12:24 am
Location: Germany

Re: MODIFICATION_FAILED in Lightning 0.9

Post by ssitter »

chk25 wrote:recreated the iCal link

Google allows only read access via the iCalendar feed and forbids write access. Therefore you can't create/edit/delete events, dismiss/snooze alarms, ...

You can get write access to the calendar e.g. by using the Provider for Google Calendar extension.
chk25
Posts: 10
Joined: November 7th, 2006, 2:56 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by chk25 »

Thanks!

Problems are solved.

cu Christian
LudoA
Posts: 6
Joined: January 12th, 2009, 1:56 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by LudoA »

This doesn't fix it for me. TB version 2.0.0.19 (20081209), Lightning 0.9, Provider for GC 0.5.1.

Cache is turned off. It's not my main Google calendar, but a secondary one which I created in my account. Using URL http://www.google.com/calendar/feeds/bl ... blah/basic

It doesn't seem to fix it for all the people in http://forums-test.mozillazine.org/view ... 0&start=45 either.

Any suggestions? This suddenly started happening to me today...
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bvdbos
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Location: Helmond, Netherlands
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Re: MODIFICATION_FAILED in Lightning 0.9

Post by bvdbos »

Did you foillow the instructions here as you're talking about a secondary google-calendar?
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ssitter
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Joined: October 19th, 2007, 12:24 am
Location: Germany

Re: MODIFICATION_FAILED in Lightning 0.9

Post by ssitter »

bvdbos wrote:Did you foillow the instructions here as you're talking about a secondary google-calendar?
This applies only when using the CalDAV protocol to access Google Calendar.
petercoolz
Posts: 1
Joined: January 13th, 2009, 1:59 pm

Re: MODIFICATION_FAILED in Lightning 0.9

Post by petercoolz »

I'm having the same issue with Lightning and a Zimbra Caldav calendar.

Has anybody got a way to resolve this?

I assume the possibilities involve changing Zimbra to allow write access via Caldav? Or making the Dismiss button not actually write to the calendar?
jeronantropis
Posts: 6
Joined: January 5th, 2007, 3:08 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by jeronantropis »

I had the same problem using Provider to sync my Google Calendar with Lightning. I think the problem has to do with the experimental "Buffer" option in Lightning 0.9. I turned it of for the calendar with which I had the problem, and the problem disappeared. Strangely enough, other calendars (also with buffer enabled) don't have the problem :-/ . Also when I re-enable the buffer option, the problem remains absent (for now).
dhjdhj
Posts: 3
Joined: October 23rd, 2011, 8:24 am

Re: MODIFICATION_FAILED in Lightning 0.9

Post by dhjdhj »

Hmmm, two years later ---- just installed Zimbra and just installed Thunderbird on my mac. Trying to access Zimbra calendar via CalDAV and failing exactly the same way.

Has this ever been solved?
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LIMPET235
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Re: MODIFICATION_FAILED in Lightning 0.9

Post by LIMPET235 »

Please start a new thread, ref; this one if needed. Thanks.
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