Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Object reference not set - cannot update Google item when syncing colours and Outlook has no category

See original GitHub issue

Checklist:-

Upgrade to the latest release (alpha if available)

Reproduce the issue

Complete the information below

Provide your OGcalsync.log file (see how-to)

I set Logging level to ‘debug’.

OGCS Version: 2.9.4.0 - alpha Edition: Installed / Sync Direction: O->G

Bug Description

Steps to Reproduce the Issue
After version update run a SYNC

Any other information

Sync version: 2.9.4.0

Profile: Default

Sync started at 2022-04-13 12:03:15

Syncing from 2022-03-29 to 2022-10-11

Outlook → Google

Finding Calendar Entries
Scanning Outlook calendar...

83 Outlook calendar entries found.

Scanning Google calendar...
81 Google calendar entries found.

17 are exceptions to recurring events.

Total inc. recurring items spanning sync date range...
Outlook 82, Google 82
Checking for orphaned Google items
Matching calendar items...


0 Google calendar entries to be deleted.

0 Google calendar entries to be created.

82 calendar entries to be compared.

Comparing 82 existing Google calendar entries

Event update failed.
Object reference not set to an instance of an object.
0 entries updated.

Sync finished!

OGcalsync.log

2022-04-13 12:02:25,364 ERROR  20 OutlookGoogleCalendarSync.Console [278] -  Event update failed.
2022-04-13 12:02:25,366 ERROR  20 OutlookGoogleCalendarSync.Console [278] -  Object reference not set to an instance of an object.
2022-04-13 12:02:25,399 ERROR  20 OutlookGoogleCalendarSync.OGCSexception [28] -  System.NullReferenceException: Object reference not set to an instance of an object.
2022-04-13 12:02:25,400 ERROR  20 OutlookGoogleCalendarSync.OGCSexception [21] -  Code: 0x80004003,-2147467261; Location: UpdateCalendarEntry() in GoogleCalendar.cs:784:21
2022-04-13 12:02:25,401 ERROR  20 OutlookGoogleCalendarSync.OGCSexception [65] -     at OutlookGoogleCalendarSync.GoogleOgcs.Calendar.UpdateCalendarEntry(AppointmentItem ai, Event ev, Int32& itemModified, Boolean forceCompare) in C:\Users\Paul\Git\OutlookGoogleCalendarSync\src\OutlookGoogleCalendarSync\GoogleOgcs\GoogleCalendar.cs:line 784
   at OutlookGoogleCalendarSync.GoogleOgcs.Calendar.UpdateCalendarEntries(Dictionary`2 entriesToBeCompared, Int32& entriesUpdated) in C:\Users\Paul\Git\OutlookGoogleCalendarSync\src\OutlookGoogleCalendarSync\GoogleOgcs\GoogleCalendar.cs:line 557
2022-04-13 12:02:25,402 DEBUG  20 System.Windows.Forms.OgcsMessageBox [72] -  Sync item failed: Google event update failed. Continue with synchronisation?