ngx-charts-dag not working with angular 2 about ngx-graph HOT 6 CLOSED

Use ngx-charts-dag version 1.0.0

from ngx-graph.

ngx-charts-dag version 1.0.0 gives below error:
Cannot read property 'map' of undefined

from ngx-graph.

How are you pass your data? Check the demo on how to use the component:
https://github.com/swimlane/ngx-charts-dag/blob/1.0.0/demo/app.component.ts

from ngx-graph.

passing data as given in the https://github.com/swimlane/ngx-charts-dag/blob/1.0.0/demo/app.component.ts gives error:
EXCEPTION: Uncaught (in promise): TypeError: Cannot read property 'map' of undefined
TypeError: Cannot read property 'map' of undefined
at DirectedGraphComponent../src/directed-graph/directed-graph.component.ts.DirectedGraphComponent.getSeriesDomain (http://localhost:4200/0.chunk.js:101578:26)
at http://localhost:4200/0.chunk.js:101236:40
at ZoneDelegate.invoke (http://localhost:4200/vendor.bundle.js:154808:26)
at Object.onInvoke (http://localhost:4200/vendor.bundle.js:34905:37)
at ZoneDelegate.invoke (http://localhost:4200/vendor.bundle.js:154807:32)
at Zone.run (http://localhost:4200/vendor.bundle.js:154692:43)
at NgZone.run (http://localhost:4200/vendor.bundle.js:34774:62)
at DirectedGraphComponent../src/directed-graph/directed-graph.component.ts.DirectedGraphComponent.update (http://localhost:4200/0.chunk.js:101229:19)
at DirectedGraphComponent../src/common/base-chart.component.ts.BaseChartComponent.ngOnChanges (http://localhost:4200/0.chunk.js:62993:14)
at Wrapper_DirectedGraphComponent.ngDoCheck (/DirectedGraphModule/DirectedGraphComponent/wrapper.ngfactory.js:283:18)
at CompiledTemplate.proxyViewClass.View_NetworkComponent0.detectChangesInternal (/RealtimeModule/NetworkComponent/component.ngfactory.js:277:40)
at CompiledTemplate.proxyViewClass.AppView.detectChanges (http://localhost:4200/vendor.bundle.js:121485:14)
at CompiledTemplate.proxyViewClass.AppView.internalDetectChanges (http://localhost:4200/vendor.bundle.js:121470:18)
at CompiledTemplate.proxyViewClass.View_NetworkComponent_Host0.detectChangesInternal (/RealtimeModule/NetworkComponent/host.ngfactory.js:27:19)
at CompiledTemplate.proxyViewClass.AppView.detectChanges (http://localhost:4200/vendor.bundle.js:121485:14)

from ngx-graph.

Are you fetching that data asynchronously? If you are, you might want to *ngIf the component until the data is fetched and ready.

from ngx-graph.

Thanks. It works.

from ngx-graph.