Error in Call Metrics Call Details Report

I’m attempting to run the CALL_METRICS_CALL_DETAILS_REPORT, but am receiving the following error:

System.InvalidOperationException: Could not set the member startTime with value Jan 22, 2018 12:41:56 PM

I am requesting the CallStartTime field in the ReportDefinition; this appears to be a long (public long callStartTime) in CallMetricsCallDetailsReportReportRow class. I obviously can’t override the type of this property.

 ReportUtilities utilities = new ReportUtilities(user, AdWordsVersion, definition);
 using (ReportResponse response = utilities.GetResponse())
 using (GZipStream gzipStream = new GZipStream(response.Stream, CompressionMode.Decompress))
 using (var report = new AwReport<CallMetricsCallDetailsReportReportRow>(new AwXmlTextReader(gzipStream), reportName))

Any suggestions would be appreciated! Stack trace below.

at Google.Api.Ads.AdWords.Util.Reports.AwReport`1.<>c.<.ctor>b__21_0(ColumnValuePair colVal, A record)
at Google.Api.Ads.AdWords.Util.Reports.ReportParserUtils.SetColumnValue[A](ColumnValuePair colVal, A record, Action`2 onError)
at Google.Api.Ads.AdWords.Util.Reports.AwReport`1.ParseCurrentRow()
at Google.Api.Ads.AdWords.Util.Reports.AwReport`1.get_Current()
at Google.Api.Ads.AdWords.Util.Reports.AwReport`1.GetRows()
at Google.Api.Ads.AdWords.Util.Reports.AwReport`1.get_Rows()

[AnashOommen]

As a temporary workaround, you can provide an OnError handler on the AwReport through the constructor. See the definition here:

https://github.com/googleads/googleads-dotnet-lib/blob/8d666a040a736eea200bbb7804adb95116788174/src/AdWords/Util/Reports/Parser/AwReport.cs#L118

You can see the default implementation on line 137 below, which simply throws an InvalidOperationException. You can adapt this logic something like this (syntax not checked, I don’t have access to an IDE right now):

using (var report = new AwReport<CallMetricsCallDetailsReportReportRow>(new AwXmlTextReader(gzipStream), reportName), delegate(colVal, record) {
      if (colVal.Name ==  "CallStartTime") {
        // Parse from datetime to long using DateTime class.
      } else {
        throw new InvalidOperationException("Could not set the member "
            + colVal.ColName + " with value " + colVal.Value);
        }
      }
) {
  // Your code goes here.
}

[AnashOommen]

Closing this issue, since this is actually an API issue, and that there is a workaround for it.