I am getting a lot of errors related to ErrorIrresolvableConflict response code when trying to create an event
Stack Trace - at Microsoft.OData.ProxyExtensions.DataServiceContextWrapper.<SaveChangesAsync>d__5e.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Office365CalendarProviderBL.<>c__DisplayClass7_0.<<CreateCalendarEvent>b__0>d.MoveNext() - Inner Exception - Microsoft.OData.Client.DataServiceRequestException: An error occurred while processing this request. ---> Microsoft.OData.Client.DataServiceClientException: {"error":{"code":"ErrorIrresolvableConflict","message":"The send or update operation could not be performed because the change key passed in the request does not match the current change key for the item."}}
--- End of inner exception stack trace ---
at Microsoft.OData.Client.SaveResult.HandleResponse()
at Microsoft.OData.Client.BaseSaveResult.EndRequest()
at Microsoft.OData.Client.DataServiceContext.EndSaveChanges(IAsyncResult asyncResult)
at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.OData.ProxyExtensions.DataServiceContextWrapper.<SaveChangesAsync>d__5e.MoveNext()
I am getting this message with this exception - The send or update operation could not be performed because the change key passed in the request does not match the current change key for the item.
- Please explain what is a change key and how it works ?
- I am getting these exceptions only from yesterday and hasn't changed any code. Do I need to update anything at my end or am I missing anything ?
I am using V1 DLL - https://api.office.com/discovery/v1.0/me/ ProxyExtension Version - 23
Code:-
// In this method, we are populating event properties later used to create event on calendar. Please verify if I am missing any important property here
private Event CreateCalEventObj(CalendarMeetingBL meeting, string location, meetingAdditionalDataBL data)
{
Event calEvent = new Event();
try
{
calEvent.Subject = WEB.HttpUtility.HtmlDecode(meeting.MeetingName);
calEvent.ShowAs = FreeBusyStatus.Busy;
if (meeting.EventAlarmInMinutes == -1)
meeting.EventAlarmInMinutes = null;
calEvent.Reminder = meeting.EventAlarmInMinutes;
calEvent.Start = meeting.StartTime;
calEvent.End = meeting.EndTime;
calEvent.StartTimeZone = meeting.TimeZoneString;
calEvent.EndTimeZone = meeting.TimeZoneString;
if (!string.IsNullOrEmpty(location) && location.Length <= 500)
{
calEvent.Location = new Microsoft.Office365.OutlookServices.Location()
{
DisplayName = CommonBL.FixLineBreakForGooglelocation(WEB.HttpUtility.HtmlDecode(location.Replace("\n", " ")))
};
}
else if (!string.IsNullOrEmpty(data.Phone))
{
calEvent.Location = new Microsoft.Office365.OutlookServices.Location()
{
DisplayName = "Phone: " + CommonBL.FixLineBreakForGooglelocation(WEB.HttpUtility.HtmlDecode(data.Phone))
};
}
else if (!string.IsNullOrEmpty(data.MobileNumber))
{
calEvent.Location = new Microsoft.Office365.OutlookServices.Location()
{
DisplayName = "Mobile: " + CommonBL.FixLineBreakForGooglelocation(WEB.HttpUtility.HtmlDecode(data.MobileNumber))
};
}
calEvent.Body = new ItemBody()
{
Content = CommonBL.RevertLineBreakPlaceHolder((WEB.HttpUtility.HtmlDecode(meeting.MeetingDetails.Replace(@"\\\", "\\"))))
};
}
catch (Exception ex)
{
BLFactory.CurrentInstance.LoggingBLObj.InsertLog("Insert logging here");
calEvent = null;
}
return calEvent;
}
// In this method we are creating event on calendar.
private string CreateCalendarEvent(CalendarMeetingBL meeting, List<ParticipantBL> invitees, string username, string calendarId, OutlookServicesClient service, string location, meetingAdditionalDataBL data, string meetingId = "-1")
{
var taskCreateMeeting = Task<string>.Run(
async () =>
{
Event calEvent = CreateCalEventObj(meeting, location, data);
if (calEvent != null)
{
try
{
//Add invitees to the event
foreach (ParticipantBL inviteeItem in invitees)
{
if (!inviteeItem.IsAdditional)
{
calEvent.Attendees.Add(new Attendee()
{
EmailAddress = new EmailAddress()
{
Address = inviteeItem.Email.Replace("'", "'"),
Name = inviteeItem.Name
},
Type = AttendeeType.Required,
Status = new ResponseStatus()
{
Response = ResponseType.Accepted,
Time = DateTime.Now
}
});
}
}
}
catch (Exception ex)
{
BLFactory.CurrentInstance.LoggingBLObj.InsertLog(meeting.MeetingId, username, "Locally User ID is Meeting id AND email is username - Scheduling Logging Exception 3 - Stack Trace - " + ex.StackTrace + " - Inner Exception - " + ex.InnerException + " - meetingObjValues - " + meetingObjValues + " - meetingAdditionalDataObjValues - " + meetingAdditionalDataObjValues + " - username - " + username + " - calendarId - " + calendarId + " - location - " + location + " - meetingId - " + meetingId, meeting.MeetingId);
return "-1";
}
try
{
var providerDefault = (String.IsNullOrEmpty(calendarId) ? service.Me.Events : service.Me.Calendars[calendarId].Events);
await providerDefault.AddEventAsync(calEvent); // We are getting Exception here but Event is created in calendar
return calEvent.Id; // Event object is not updated after exception
}
catch (Exception ex)
{
BLFactory.CurrentInstance.LoggingBLObj.InsertLog("Insert exception logging here");
return "-1";
}
}
else
return "-1";
}
);
Task.WaitAll(taskCreateMeeting);
string id = taskCreateMeeting.Result;
return id;
}
The exception we are getting is of type Microsoft.OData.Client.DataServiceRequestException but it is not caught under the dedicated catch block
catch (Microsoft.OData.Client.DataServiceRequestException ex)
{
BLFactory.CurrentInstance.LoggingBLObj.InsertLog("Insert logging here");
return "-1";
}
Let me know if anything else is required Thanks in Advance.
