Ref Error in Keywords_Performance_Reports

[Evan Nichols]

function main() {

  var ACCOUNTS = ['795-463-4220'];

  var ADWORDS_REPORT = 'KEYWORDS_PERFORMANCE_REPORT';

  var FILTER = 'Impressions > 0';

  var DATE_RANGE = 'LAST_30_DAYS';

  var COLUMNS = [

     'AccountDescriptiveName'

    ,'Date'

    ,'CampaignName'

    ,'AdGroupName'

    ,'Keywordtext'

    ,'ConversionsManyPerClick'

    ,'Id'

    ,'ExternalCustomerId'

    ,'CreativeDestinationUrl'

    ,'Clicks'

    ,'Impressions'

    ,'Ctr'

    ,'AverageCpc'

    ,'Cost'

    ,'AveragePosition'

    ,'CustomerDescriptiveName'

    ,'PrimaryCompanyName'

  ];

  var REPORT_NAME = 'Mediassociates_SEM_Last30.csv';

  

  var adwords_columns = COLUMNS.join(',');  

  var mccAccount = AdWordsApp.currentAccount();

  var childAccounts = MccApp.accounts().withIds(ACCOUNTS).get();

  var childAccount = childAccounts.next();

  MccApp.select(childAccount);

  var report = KeywordsPerformance.report(

    'SELECT ' + keywords_columns +

    ' FROM ' + keywords_REPORT +

    ' WHERE ' + FILTER +

    ' DURING ' + DATE_RANGE);

  

  csv = '';

  for(i = 0; i < COLUMNS.length; i++) {

    csv += i === 0 ? '' : ','

    csv += COLUMNS[i];

  }

  var rows = report.rows();

  while (rows.hasNext()) {

    var row = rows.next();

    csv += '\n';

    for(i = 0; i < COLUMNS.length; i++) {

      csv += i === 0 ? '' : ','

      csv += row[COLUMNS[i]];

    }

  }

  DriveApp.createFile(REPORT_NAME, csv, MimeType.CSV);

}

For the above script I keep getting an error in line 35 and 'keywordstext' is not valid for keywords performance report.  any insights very welcom