TypeError: Cannot call method 'substr' of undefined
  at Transform._transform (/Users/bla/node_modules/gulp-cloudfront/index.js:21:34)
  at Transform._read (/Users/bla/node_modules/gulp-cloudfront/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:184:10)
  at Transform._write (/Users/bla/node_modules/gulp-cloudfront/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:172:12)
  at doWrite (/Users/bla/node_modules/gulp-cloudfront/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:237:10)
  at writeOrBuffer (/Users/bla/node_modules/gulp-cloudfront/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:227:5)
  at Transform.Writable.write (/Users/bla/node_modules/gulp-cloudfront/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:194:11)
  at DestroyableTransform.ondata (stream.js:51:26)
  at DestroyableTransform.emit (events.js:95:17)
  at DestroyableTransform.<anonymous> (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:786:14)
  at DestroyableTransform.emit (events.js:92:17)
  at emitReadable_ (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:448:10)
  at emitReadable (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:444:5)
  at readableAddChunk (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:187:9)
  at DestroyableTransform.Readable.push (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:149:10)
  at DestroyableTransform.Transform.push (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:145:32)
  at afterTransform (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:101:12)
  at TransformState.afterTransform (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:79:12)
  at DestroyableTransform._transform (/Users/bla/node_modules/gulp-awspublish/lib/log-reporter.js:39:5)
  at DestroyableTransform.Transform._read (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:184:10)
  at DestroyableTransform.Transform._write (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:172:12)
  at doWrite (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:237:10)
  at writeOrBuffer (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:227:5)
  at DestroyableTransform.Writable.write (/Users/bla/node_modules/gulp-awspublish/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:194:11)
  at write (_stream_readable.js:601:24)
  at flow (_stream_readable.js:610:7)
  at Transform.pipeOnReadable (_stream_readable.js:642:5)
  at Transform.emit (events.js:92:17)
  at emitReadable_ (_stream_readable.js:426:10)
  at emitReadable (_stream_readable.js:422:5)
  at readableAddChunk (_stream_readable.js:165:9)
  at Transform.Readable.push (_stream_readable.js:127:10)
  at Transform.push (_stream_transform.js:140:32)
  at [object Object].<anonymous> (/Users/bla/node_modules/gulp-awspublish/lib/index.js:432:14)
  at [object Object].emit (events.js:95:17)
  at [object Object].<anonymous> (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_readable.js:786:14)
  at [object Object].emit (events.js:92:17)
  at emitReadable_ (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_readable.js:448:10)
  at emitReadable (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_readable.js:444:5)
  at readableAddChunk (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_readable.js:187:9)
  at [object Object].Readable.push (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_readable.js:149:10)
  at [object Object].Duplexify._forward (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/index.js:159:26)
  at XmlToObj.onreadable (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/index.js:125:10)
  at XmlToObj.emit (events.js:92:17)
  at emitReadable_ (_stream_readable.js:426:10)
  at emitReadable (_stream_readable.js:422:5)
  at readableAddChunk (_stream_readable.js:165:9)
  at XmlToObj.Readable.push (_stream_readable.js:127:10)
  at XmlToObj.Transform.push (_stream_transform.js:140:32)
  at /Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/index.js:24:10
  at Parser.<anonymous> (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/lib/xml2js.js:425:18)
  at Parser.emit (events.js:95:17)
  at Object.onclosetag (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/lib/xml2js.js:394:26)
  at emit (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/node_modules/sax/lib/sax.js:615:33)
  at emitNode (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/node_modules/sax/lib/sax.js:620:3)
  at closeTag (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/node_modules/sax/lib/sax.js:861:5)
  at Object.write (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/node_modules/sax/lib/sax.js:1294:29)
  at Parser.exports.Parser.Parser.parseString (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/lib/xml2js.js:444:31)
  at Parser.parseString (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/node_modules/xml2js/lib/xml2js.js:6:61)
  at XmlToObj._transform (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-objects/index.js:22:10)
  at XmlToObj.Transform._read (_stream_transform.js:179:10)
  at XmlToObj.Transform._write (_stream_transform.js:167:12)
  at doWrite (_stream_writable.js:225:10)
  at writeOrBuffer (_stream_writable.js:215:5)
  at XmlToObj.Writable.write (_stream_writable.js:182:11)
  at write (_stream_readable.js:601:24)
  at flow (_stream_readable.js:610:7)
  at XmlNodes.pipeOnReadable (_stream_readable.js:642:5)
  at XmlNodes.emit (events.js:92:17)
  at emitReadable_ (_stream_readable.js:426:10)
  at emitReadable (_stream_readable.js:422:5)
  at readableAddChunk (_stream_readable.js:165:9)
  at XmlNodes.Readable.push (_stream_readable.js:127:10)
  at XmlNodes.Transform.push (_stream_transform.js:140:32)
  at XmlNodes._transform (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/xml-nodes/index.js:23:10)
  at XmlNodes.Transform._read (_stream_transform.js:179:10)
  at XmlNodes.Transform._write (_stream_transform.js:167:12)
  at doWrite (_stream_writable.js:225:10)
  at writeOrBuffer (_stream_writable.js:215:5)
  at XmlNodes.Writable.write (_stream_writable.js:182:11)
  at [object Object].Duplexify._write (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/index.js:197:22)
  at doWrite (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_writable.js:237:10)
  at writeOrBuffer (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_writable.js:227:5)
  at [object Object].Writable.write (/Users/bla/node_modules/gulp-awspublish/node_modules/xml-json/node_modules/pumpify/node_modules/duplexify/node_modules/readable-stream/lib/_stream_writable.js:194:11)
  at write (_stream_readable.js:601:24)
  at flow (_stream_readable.js:610:7)
  at Readable.pipeOnReadable (_stream_readable.js:642:5)
  at Readable.emit (events.js:92:17)
  at emitReadable_ (_stream_readable.js:426:10)
  at emitReadable (_stream_readable.js:422:5)
  at readableAddChunk (_stream_readable.js:165:9)
  at Readable.push (_stream_readable.js:127:10)
  at IncomingMessage.<anonymous> (/Users/bla/node_modules/gulp-awspublish/node_modules/aws-sdk/lib/request.js:571:42)
  at IncomingMessage.emit (events.js:92:17)
  at emitReadable_ (_stream_readable.js:426:10)
  at emitReadable (_stream_readable.js:422:5)
  at readableAddChunk (_stream_readable.js:165:9)
  at IncomingMessage.Readable.push (_stream_readable.js:127:10)
  at HTTPParser.parserOnBody [as onBody] (http.js:142:22)
  at CleartextStream.socketOnData [as ondata] (http.js:1587:20)
  at CleartextStream.read [as _read] (tls.js:513:12)
  at CleartextStream.Readable.read (_stream_readable.js:340:10)
  at EncryptedStream.write [as _write] (tls.js:368:25)
  at doWrite (_stream_writable.js:225:10)
  at writeOrBuffer (_stream_writable.js:215:5)
  at EncryptedStream.Writable.write (_stream_writable.js:182:11)
  at write (_stream_readable.js:601:24)
  at flow (_stream_readable.js:610:7)
  at Socket.pipeOnReadable (_stream_readable.js:642:5)
  at Socket.emit (events.js:92:17)
  at emitReadable_ (_stream_readable.js:426:10)
  at emitReadable (_stream_readable.js:422:5)
  at readableAddChunk (_stream_readable.js:165:9)
  at Socket.Readable.push (_stream_readable.js:127:10)
  at TCP.onread (net.js:528:21)