ngx-graph-new/demo/app.module.ts

Modify the ngx-chart version is used

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { FormsModule } from '@angular/forms';
import { APP_BASE_HREF, Location } from '@angular/common';
import { NgxChartsModule } from '@swimlane/ngx-charts';
import { AppComponent } from './app.component';
import { NgxGraphModule } from '../src';

@NgModule({
  providers: [
    {
      provide: APP_BASE_HREF,
      useFactory: getBaseLocation
    }
  ],
  imports: [NgxChartsModule, NgxGraphModule, BrowserModule, BrowserAnimationsModule, FormsModule],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})
export class AppModule { }

export function getBaseLocation() {
    const paths: string[] = location.pathname.split('/').splice(1, 1);
    const basePath: string = (paths && paths[0]) || '';
    return '/' + basePath;
}