Can’t import the named export x from non EcmaScript module

Explanation of the problem

The problem encountered is related to importing named exports from a non-ECMAScript module in the ng-apexcharts package. The error message indicates that the named exports ‘Component’ and ‘Input’ cannot be imported, and only the default export is available. This issue is causing the following errors:

Error: ./node_modules/ng-apexcharts/fesm2015/ng-apexcharts.mjs 321:10-19
Can't import the named export 'Component' from non EcmaScript module (only default export is available)

Error: ./node_modules/ng-apexcharts/fesm2015/ng-apexcharts.mjs 330:12-17
Can't import the named export 'Input' from non EcmaScript module (only default export is available)

Error: ./node_modules/ng-apexcharts/fesm2015/ng-apexcharts.mjs 333:12-17
Can't import the named export 'Input' from non EcmaScript module (only default export is available)

Troubleshooting with the Lightrun Developer Observability Platform

Getting a sense of what’s actually happening inside a live application is a frustrating experience, one that relies mostly on querying and observing whatever logs were written during development.
Lightrun is a Developer Observability Platform, allowing developers to add telemetry to live applications in real-time, on-demand, and right from the IDE.

• Instantly add logs to, set metrics in, and take snapshots of live applications
• Insights delivered straight to your IDE or CLI
• Works where you do: dev, QA, staging, CI/CD, and production

Start for free today

Problem solution for: Can’t import the named export x from non EcmaScript module

To address this issue, the developer has attempted to modify the configuration settings in compilerOptions and webpack. However, these attempts have not resolved the problem.

Here is an example of the attempted configuration in the package.json file:

{
  "name": "xxx",
  "version": "0.1.00",
  "scripts": {
    ...
  },
  "private": true,
  "dependencies": {
    ...
  },
  "devDependencies": {
    ...
  },
  "babel": {
    "presets": [
      [
        "@babel/preset-env",
        {
          "modules": "auto",
          "targets": {
            "esmodules": true
          }
        }
      ]
    ]
  }
}

Despite the configuration attempts, the problem persists. To resolve this issue, you can try updating the versions of the apexcharts and ng-apexcharts packages in the package.json file to compatible versions. For example:

{
  ...
  "dependencies": {
    "apexcharts": "3.33.0",
    "ng-apexcharts": "1.6.0",
    ...
  },
  ...
}

By specifying compatible versions, you ensure that the required exports are available in the modules and can be imported successfully. After updating the package versions, you can run npm install to install the updated packages and then restart the application to see if the error is resolved.

Other popular problems with ng-apexcharts

Problem: Error in importing named exports from non-ECMAScript module One common problem with ng-apexcharts is encountering errors when importing named exports from a non-ECMAScript module. This error occurs when attempting to import specific exports, such as ‘Component’ or ‘Input’, from the ng-apexcharts module. The error message indicates that only the default export is available, and the named exports cannot be imported. Here’s an example of the error message:

Can't import the named export 'Component' from non-ECMAScript module (only default export is available)

Solution: To resolve this issue, you can try updating the versions of the apexcharts and ng-apexcharts packages in the package.json file to compatible versions. By ensuring compatibility between the package versions, you can ensure that the required named exports are available in the modules and can be imported successfully. Here’s an example of how you can update the package versions:

{
  "dependencies": {
    "apexcharts": "3.33.0",
    "ng-apexcharts": "1.6.0"
  }
}

After updating the versions, run npm install to install the updated packages. Restart the application to see if the error is resolved.

2. Problem: Incompatibility with Angular versions Another problem with ng-apexcharts arises when there is an incompatibility between the version of Angular used in the project and the version of ng-apexcharts being used. This can lead to various issues, including errors during compilation or runtime.

Solution: To resolve this issue, ensure that you are using a compatible version of ng-apexcharts with the Angular version in your project. Check the documentation or release notes of ng-apexcharts to find the compatible versions. Update the package.json file accordingly and then run npm install to install the updated package. Verify that the versions are compatible and that the issue is resolved.

3. Problem: Lack of Chart Customization Options One limitation of ng-apexcharts is the lack of extensive customization options for the rendered charts. While ng-apexcharts provides a convenient way to integrate ApexCharts into an Angular project, it may not expose all the advanced customization options available in the original ApexCharts library.

Solution: If you require advanced customization options beyond what ng-apexcharts offers, you can consider using the original ApexCharts library directly in your Angular project. This will require manually integrating ApexCharts into your Angular components and managing the chart instances. Here’s an example of how you can achieve this:

First, install the ApexCharts library:

npm install apexcharts

Then, import the necessary modules and create a chart instance in your Angular component:

import ApexCharts from 'apexcharts';

// Inside your component class
ngOnInit() {
  const options = {
    // Define chart options
    chart: {
      // ...
    },
    series: [
      // ...
    ],
    // ...
  };

  const chart = new ApexCharts(document.querySelector('#chart'), options);
  chart.render();
}

By using the original ApexCharts library, you can leverage its full range of customization options and have more control over the chart’s appearance and behavior.

ng-apexcharts is a powerful Angular wrapper for the ApexCharts library, which is a feature-rich JavaScript charting library. It provides seamless integration of ApexCharts into Angular applications, allowing developers to create visually appealing and interactive charts with ease. With ng-apexcharts, you can leverage the wide range of chart types, customization options, and interactivity features offered by ApexCharts in your Angular projects.

The main advantage of using ng-apexcharts is its seamless integration with Angular’s component-based architecture. It provides Angular components that encapsulate the functionality of ApexCharts, making it easy to include charts in your Angular templates. By leveraging the power of Angular’s data binding and component lifecycle hooks, you can dynamically update the chart data and customize its appearance based on user interactions or data changes. Additionally, ng-apexcharts supports TypeScript, providing strong typing and improved development experience for Angular developers.

Most popular use cases for ng-apexcharts

1. Data Visualization: ng-apexcharts can be used to create visually appealing and interactive data visualizations in Angular applications. It offers a wide range of chart types such as line charts, bar charts, pie charts, and more. You can easily represent complex data sets in a meaningful and intuitive way using the powerful charting capabilities provided by ApexCharts. Here’s an example of creating a line chart with ng-apexcharts:

import { Component } from '@angular/core';
import { ChartOptions, ChartSeries } from 'ng-apexcharts';

@Component({
  selector: 'app-chart',
  template: `
    <ng-apexcharts
      [series]="chartSeries"
      [chart]="chartOptions"
      [width]="500"
      [height]="300"
    ></ng-apexcharts>
  `,
})
export class ChartComponent {
  chartSeries: ChartSeries[] = [
    { name: 'Series 1', data: [30, 40, 35, 50, 49, 60, 70, 91, 125] },
  ];

  chartOptions: ChartOptions = {
    chart: {
      type: 'line',
    },
    xaxis: {
      categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep'],
    },
  };
}