NG2-Charts Can't bind to 'datasets' since it isn't a known property of 'canvas'
JavascriptAngularChartschart.jsNg2 ChartsJavascript Problem Overview
I am trying to use the basic example of NG2-Charts (http://valor-software.com/ng2-charts/)
I copy pasted the HTML part
<div style="display: block">
<canvas baseChart
[datasets]="barChartData"
[labels]="barChartLabels"
[options]="barChartOptions"
[legend]="barChartLegend"
[chartType]="barChartType"
(chartHover)="chartHovered($event)"
(chartClick)="chartClicked($event)"></canvas>
</div>
and the TypeScript part
private barChartOptions: any = {
scaleShowVerticalLines: false,
responsive: true
};
private barChartLabels: string[] = ['2006', '2007', '2008', '2009', '2010', '2011', '2012'];
private barChartType: string = 'bar';
private barChartLegend: boolean = true;
private barChartData: any[] = [
{ data: [65, 59, 80, 81, 56, 55, 40], label: 'Series A' },
{ data: [28, 48, 40, 19, 86, 27, 90], label: 'Series B' }
];
// events
private chartClicked(e: any): void {
console.log(e);
}
private chartHovered(e: any): void {
console.log(e);
}
I run npm install ng2-charts --save, npm install chart.js --save and typings install dt~chart.js --save --global
I also imported chart.js in my vendor.ts file
import 'chart.js';
My dependencies:
{
"@angular/common": "^2.0.0",
"@angular/compiler": "2.0.0",
"@angular/core": "2.0.0",
"@angular/forms": "2.0.0",
"@angular/http": "2.0.0",
"@angular/platform-browser": "2.0.0",
"@angular/platform-browser-dynamic": "2.0.0",
"@angular/router": "3.0.0",
"angular2-jwt": "^0.1.18",
"chart.js": "^2.3.0",
"core-js": "^2.4.0",
"json-loader": "^0.5.4",
"moment": "^2.14.1",
"ng2-charts": "^1.4.0",
"reflect-metadata": "0.1.2",
"rxjs": "5.0.0-beta.11",
"zone.js": "^0.6.23"
}
Here is the Error
Unhandled Promise rejection: Template parse errors:
Can't bind to 'datasets' since it isn't a known property of 'canvas'. ("iuminfooneoptionsTwo">
<div style="display: block">
<canvas baseChart [ERROR ->][datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLeg"): PlayerprofileComponent@39:34
Can't bind to 'labels' since it isn't a known property of 'canvas'. (" <div style="display: block">
<canvas baseChart [datasets]="barChartData" [ERROR ->][labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChart"): PlayerprofileComponent@39:60
Can't bind to 'options' since it isn't a known property of 'canvas'. ("lay: block">
<canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [ERROR ->][options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartH"): PlayerprofileComponent@39:86
Can't bind to 'legend' since it isn't a known property of 'canvas'. (" <canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [ERROR ->][legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)"): PlayerprofileComponent@39:114
Can't bind to 'chartType' since it isn't a known property of 'canvas'. ("ets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [ERROR ->][chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)="chartClicked($event)">
"): PlayerprofileComponent@39:140 ; Zone: <root> ; Task: Promise.then ; Value: Error: Template parse errors:(…) Error: Template parse errors:
Can't bind to 'datasets' since it isn't a known property of 'canvas'. ("iuminfooneoptionsTwo">
<div style="display: block">
<canvas baseChart [ERROR ->][datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLeg"): PlayerprofileComponent@39:34
Can't bind to 'labels' since it isn't a known property of 'canvas'. (" <div style="display: block">
<canvas baseChart [datasets]="barChartData" [ERROR ->][labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChart"): PlayerprofileComponent@39:60
Can't bind to 'options' since it isn't a known property of 'canvas'. ("lay: block">
<canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [ERROR ->][options]="barChartOptions" [legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartH"): PlayerprofileComponent@39:86
Can't bind to 'legend' since it isn't a known property of 'canvas'. (" <canvas baseChart [datasets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [ERROR ->][legend]="barChartLegend" [chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)"): PlayerprofileComponent@39:114
Can't bind to 'chartType' since it isn't a known property of 'canvas'. ("ets]="barChartData" [labels]="barChartLabels" [options]="barChartOptions" [legend]="barChartLegend" [ERROR ->][chartType]="barChartType" (chartHover)="chartHovered($event)" (chartClick)="chartClicked($event)">
"): PlayerprofileComponent@39:140
at TemplateParser.parse (eval at <anonymous> (http://localhost:8080/vendor.js:623:1), <anonymous>:133:19)
at RuntimeCompiler._compileTemplate (eval at <anonymous> (http://localhost:8080/vendor.js:2103:1), <anonymous>:244:51)
at eval (eval at <anonymous> (http://localhost:8080/vendor.js:2103:1), <anonymous>:167:83)
at Set.forEach (native)
at compile (eval at <anonymous> (http://localhost:8080/vendor.js:2103:1), <anonymous>:167:47)
at ZoneDelegate.invoke (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:192:28)
at Zone.run (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:85:43)
at eval (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:451:57)
at ZoneDelegate.invokeTask (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:225:37)
at Zone.runTask (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:125:47)
at drainMicroTaskQueue (eval at <anonymous> (http://localhost:8080/polyfills.js:4105:1), <anonymous>:357:35)
The NG2-Charts website says I need to include this in the HTML
<script src="node_modules/chart.js/src/chart.js"></script>
But I think thats not correct because how would that statement work in a productive minified / built app? I also thought my webpack import statement would already take care of that? I googled around but sadly only found stuff for some Angular 2 Beta version on NG2 Charts.
Does anyone has an idea on how to fix that?
Thanks and Cheers, Raphael Hippe
Javascript Solutions
Solution 1 - Javascript
Try importing ChartsModule in your app.module.ts like this-
import { ChartsModule } from 'ng2-charts/ng2-charts';
imports: [
.....
ChartsModule
.....
]
Solution 2 - Javascript
I had the very same problem. I found on github that you just have to insert the ChartsModule in the submodule as well. First you add in app.module.ts and the, in my case, reports.module.ts.
Solution 3 - Javascript
I'm working with ng2-charts + Angular 7 + Ionic 4, and I spent several hours searching for a solution. And this finally worked to me (after following the initial steps, of course, like installing ng2-charts and charts.js). Just import ChartsModule on the following files:
app.module.ts
import { ChartsModule } from 'ng2-charts';
...
imports: [ChartsModule]
yourPage.module.ts
import { ChartsModule } from 'ng2-charts';
@NgModule({
imports: [
IonicModule,
CommonModule,
FormsModule,
RouterModule.forChild([{ path: '', component: YourPagePage }]),
**ChartsModule**
]
})
I was trying to import it also in yourPage.page.ts, but the solution was to import it in yourPage.module.ts!
Try it out.
Solution 4 - Javascript
i'm working with [email protected]
looks like the property chartType is now called type
so it should look something like this:
<canvas
style="display: block;background-color: #3a3939;"
width="600"
height="300"
id="canvas"
#myCanvas
baseChart
[type]="lineChartType"
[datasets]="lineChartData"
[labels]="lineChartLabels"
[options]="mfChartOptions"
[legend]="lineChartLegend">
</canvas>
Solution 5 - Javascript
The reason might be: You are using Ng2Charts directly from your child components/module.
Solutions: You have to import the Ng2Charts on your parent module as well. (Import Ng2Charts [ng2-charts], to your parent and child module)
Happy fixing everyone.
Thank you. Marjun Villegas
Solution 6 - Javascript
Instead of importing the ChartsModule in App Module, import it in inside module where your are using. For example, home module (if using Charts in Home page).
Solution 7 - Javascript
In case you are using a Shared Module, you also need to export the ChartsModule from there, to make it available to all your components which use your Shared Module.
// Simplified module only showing what's important for ChartsModule
import { NgModule } from '@angular/core';
import { ChartsModule } from 'ng2-charts';
@NgModule({
declarations: [],
imports: [ChartsModule],
exports: [ChartsModule]
})
export class SharedModule {
static forRoot(): ModuleWithProviders<SharedModule> {
return {
ngModule: SharedModule
};
}
}
Solution 8 - Javascript
If your component is declared in another module other than app.module.ts you will simply do the following:
app.module.ts
import { ChartsModule } from 'ng2-charts';
...
@NgModule({
...
imports: [
...
ChartsModule,
...
]
})
export class AppModule{ }
module-where-your-component-is-declared.module.ts
import { ChartsModule } from 'ng2-charts';
...
@NgModule({
declarations: [YourComponent],
imports: [
...
ChartsModule,
...
],
...
})
export class ModuleWhereYourComponentIsDeclared { }
Solution 9 - Javascript
In my case, it was nothing to do with including ChartsModule in multiple modules or exporting it.
I had created a chart component that used ng-chart and then found I needed another version of it. So I copied the component, renamed the class and template file, but forgot to update the templateUrl property in the @Component decorator.
Having two different components referencing the same template file gave the exact same error:
> Can't bind to 'datasets' since it isn't a known property of 'canvas'
As soon as I changed the new component to use the correct HTML template, the error was resolved.
FYI, I reference ChartsModule as shown in @sanket's answer in the module of my chart components and the module of the page components that reference them (so it's not needed in AppModule).
Solution 10 - Javascript
In my case I had to change how I import and a little change in my html file tag:
chart.component.ts
import {Component} from '@angular/core';
import {CHART_DIRECTIVES} from 'ng2-charts/ng2-charts';
@Component({
selector: 'chart-balance',
template: require('./templates/chart-balance.template'),
styles: [`.chart {display: block; width: 100%;}`],
directives: [CHART_DIRECTIVES]
})
export class ChartBalanceComponent {
public barChartOptions:any = {
scaleShowVerticalLines: false,
responsive: true,
scales: {
yAxes: [{
ticks: {
beginAtZero: true,
callback: label => `${label.toLocaleString()}`
}
}]
}
};
public barChartLabels:string[] = ['2014', '2015', '2016'];
public barChartType:string = 'bar';
public barChartLegend:boolean = true;
public barChartData:any[] = [
{data: [32131, 3432, 543], label:'Test 1'},
{data: [54353, 432, 768], label:'Test 2'}
];
// events
public chartClicked(e:any):void {
console.log(e);
}
public chartHovered(e:any):void {
console.log(e);
}
}
Here was another change I did:
> notice -- > base-chart class="chart" ...
chart-balance.template
<base-chart class="chart"
[datasets]="barChartData"
[labels]="barChartLabels"
[options]="barChartOptions"
[legend]="barChartLegend"
[chartType]="barChartType"
(chartHover)="chartHovered($event)"
(chartClick)="chartClicked($event)"></base-chart>
ng2-charts
export * from './components/charts/charts';
declare var _default: {
directives: any[][];
};
export default _default;
charts
import { OnDestroy, OnInit, OnChanges, EventEmitter, ElementRef } from '@angular/core';
export declare class BaseChartComponent implements OnDestroy, OnChanges, OnInit {
static defaultColors: Array<number[]>;
data: number[] | Array<number[]>;
datasets: any[];
labels: Array<any>;
options: any;
chartType: string;
colors: Array<any>;
legend: boolean;
chartClick: EventEmitter<any>;
chartHover: EventEmitter<any>;
private ctx;
private cvs;
private parent;
private chart;
private initFlag;
private element;
constructor(element: ElementRef);
ngOnInit(): any;
ngOnChanges(): any;
ngOnDestroy(): any;
getChartBuilder(ctx: any): any;
private refresh();
}
export interface Color {
backgroundColor?: string | string[];
borderWidth?: number | number[];
borderColor?: string | string[];
borderCapStyle?: string;
borderDash?: number[];
borderDashOffset?: number;
borderJoinStyle?: string;
pointBorderColor?: string | string[];
pointBackgroundColor?: string | string[];
pointBorderWidth?: number | number[];
pointRadius?: number | number[];
pointHoverRadius?: number | number[];
pointHitRadius?: number | number[];
pointHoverBackgroundColor?: string | string[];
pointHoverBorderColor?: string | string[];
pointHoverBorderWidth?: number | number[];
pointStyle?: string | string[];
hoverBackgroundColor?: string | string[];
hoverBorderColor?: string | string[];
hoverBorderWidth?: number;
}
export interface Colors extends Color {
data?: number[];
label?: string;
}
export declare const CHART_DIRECTIVES: Array<any>;