amcharts4 is not compiling with angular 6

Question

I'm having trouble with compiling my app when including amcharts4. I have simply installed the amcharts4 npm package and am trying to use it in a component i've created. Am i missing something with the CLI config?

ERROR in node_modules/@amcharts/amcharts4/.internal/core/utils/Object.d.ts(60,117): error TS2536: Type 'Key' cannot be used to index type 'Object'.
node_modules/@amcharts/amcharts4/.internal/core/utils/Object.d.ts(67,109): error TS2536: Type 'Key' cannot be used to index type 'Object'.
node_modules/@amcharts/amcharts4/.internal/core/utils/Object.d.ts(76,116): error TS2536: Type 'Key' cannot be used to index type 'Object'.
node_modules/@amcharts/amcharts4/.internal/core/utils/Type.d.ts(25,32): error TS2304: Cannot find name 'Extract'.

my typescript:

import { Component, NgZone } from "@angular/core";
import * as am4core from "@amcharts/amcharts4/core";
import * as am4charts from "@amcharts/amcharts4/charts";
import am4themes_animated from "@amcharts/amcharts4/themes/animated";

am4core.useTheme(am4themes_animated);


@Component({
  selector: 'app-am-charts',
  templateUrl: './am-charts.component.html',
  styleUrls: ['./am-charts.component.css']
})
export class AmChartsComponent {

}

Answer 1

Per this issue this newer closed issue and our angular integration documentation, make sure you have the following in your tsconfig.json as AmCharts 4 does not currently support strict mode:

{
    "compilerOptions": {
        "strictNullChecks": false,
        "strictFunctionTypes": false
    }
}

In addition to this, make sure you're at least on TypeScript version 2.7 2.8 but not 3.x as it isn't supported yet.