writer.parts is not a function
at write (node_modules/shp-write/shpwrite.js:12510:24)
at eval (node_modules/shp-write/shpwrite.js:12570:13)
at Array.forEach (native)
at Module.module.exports (node_modules/shp-write/shpwrite.js:12568:10)
at GeoConvert.toShapefile (dist/app/main/util/geo-convert.service.js:9:3495)
at Object.it (spec-compiled/main/geo-convert.service.spec.js:61:44)
at ZoneDelegate.invoke (node_modules/zone.js/dist/zone.js:332:29)
at ProxyZoneSpec.onInvoke (node_modules/zone.js/dist/proxy.js:106:44)
at ZoneDelegate.invoke (node_modules/zone.js/dist/zone.js:331:35)
at Zone.run (node_modules/zone.js/dist/zone.js:225:44)
at Object.<anonymous> (node_modules/zone.js/dist/jasmine-patch.js:123:51)
at ZoneQueueRunner.jasmine.QueueRunner.ZoneQueueRunner.execute (node_modules/zone.js/dist/jasmine-patch.js:151:43)
at ZoneQueueRunner.jasmine.QueueRunner.ZoneQueueRunner.execute (node_modules/zone.js/dist/jasmine-patch.js:151:43)
at ZoneDelegate.invokeTask (node_modules/zone.js/dist/zone.js:365:38)
at Zone.runTask (node_modules/zone.js/dist/zone.js:265:48)
at drainMicroTaskQueue (node_modules/zone.js/dist/zone.js:497:36)
at ZoneTask.invoke (node_modules/zone.js/dist/zone.js:437:26)
the call fails with the following stack trace: