#1027 error after upgrading to 4.2.1.33

[Kent Kruske]

Hi. I just upgraded to 4.2.1.33 from 4.2.1. He's part of the log showing the failure. I uninstalled 4.2.1.33 and went back to 4.2.1. All is good with that release.

The service calendar has thrown an exception. HttpStatusCode is PreconditionFailed. Precondition Failed
ResponseString: {
"error": {
"errors":
{
"domain": "global",
"reason": "conditionNotMet",
"message": "Precondition Failed",
"locationType": "header",
"location": "If-Match"
}
,
"code": 412,
"message": "Precondition Failed"
}
}

The service calendar has thrown an exception.
HttpStatusCode is PreconditionFailed.
Google.Apis.Requests.RequestError
Precondition Failed [412]
Errors
Message[Precondition Failed Location[If-Match - header] Reason[conditionNotMet] Domain[global]
]

Google.GoogleApiException: The service calendar has thrown an exception. HttpStatusCode is PreconditionFailed. Precondition Failed
at Google.Apis.Requests.ClientServiceRequest1.<ParseResponse>d__38.MoveNext() in /_/Src/Support/Google.Apis/Requests/ClientServiceRequest.cs:line 262 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Google.Apis.Requests.ClientServiceRequest1.Execute() in /_/Src/Support/Google.Apis/Requests/ClientServiceRequest.cs:line 189
at GoContactSyncMod.Synchronizer.UpdateGoogleAppointment(Event ga) in C:\Users\saller\Source\googlesyncmod\trunk\GoogleContactsSync\Synchronizer.cs:line 3933