Error prevents the Chart component to display

[Eslam Gohar]

The two bar charts (grouped bar chart & single bar chart) have not been displayed yet because of this error below. The two charts are displayed when I run on the code on Stackblitz URL below. But, when applying the same code with the same dependencies on my environment, these errors below appears in the DevTools so check the component code and help me.

The error:

Uncaught TypeError: Cannot read properties of null (reading 'width') 
    at SvgRenderer.setSVGSize (svg-renderer.js:48:79)
    at SvgRenderer.createSvg (svg-renderer.js:40:14)
    at rotateTextSize (helper.js:267:43)
    at Axis.getMaxLabelWidth (axis.js:664:105)
    at Category.calculateVisibleLabels (category-axis.js:123:18)
    at Category.calculateRangeAndInterval (category-axis.js:50:14)
    at CartesianAxisLayoutPanel.measureDefinition (cartesian-panel.js:137:29)
    at CartesianAxisLayoutPanel.measureRowAxis (cartesian-panel.js:91:18)
    at CartesianAxisLayoutPanel.measureAxis (cartesian-panel.js:47:14)
    at Chart.calculateBounds (chart.js:902:35)
----------
The above error occurred in the <ChartComponent> component:
    at ChartComponent (webpack://LimitLess/./node_modules/@syncfusion/ej2-react-charts/src/chart/chart.component.js?:34:28)
    at div
    at div
    at div
    at div
    at div
    at div
    at div
    at div
    at ReportCardWrapper (webpack://LimitLess/./src/react/componenets/dashboard/report-card-wrapper.component.tsx?:17:17)
    at div
    at IncomingCorrespondencesComponent (webpack://LimitLess/./src/react/componenets/dashboard/office-of-representatives/incoming-correspondences/incoming-correspondences.component.tsx?:124:74)
    at render
    at div
    at TabComponent (webpack://LimitLess/./node_modules/@syncfusion/ej2-react-navigations/src/tab/tab.component.js?:34:28)
    at div
    at div
    at viceReportsListComponent (webpack://LimitLess/./src/react/componenets/dashboard/vice-reports-list.component.tsx?:19:74)
***********************************************

The code:
https://stackblitz.com/edit/vitejs-vite-sngmouze?file=src%2Fmain.tsx,src%2Ftest.tsx 

[Durga Gopalakrishnan]

Hi Eslam,

Thank you for reaching out.

We reviewed your scenario by downloading the provided sample, installing the required npm dependencies, and running the project locally. However, we were unable to reproduce the reported exception. Both the grouped bar chart and the single bar chart rendered successfully without any console errors. For your reference, we have attached the tested sample and the corresponding GIF demonstrating the behavior.

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/ReactChart.zip

Since we are unable to replicate the issue on our end, we kindly request the following information to assist us in further analysis and isolating the root cause:

• Please verify whether the issue can be reproduced using the above tested sample.
• Share a video recording that clearly demonstrates the problem and the exact console error.
• Let us know if you are using a different project configuration.
• Provide your Node.js and npm versions.
• Share browser details (browser name, version, and whether any extensions are installed that might affect rendering).
• If possible, share a minimal reproducible project where the issue consistently occurs.

Please feel free to reach out if you have any further concerns or additional information to share.

Regards,

Durga Gopalakrishnan.

Attachment: groupedcolumn_222b5538.zip

[Clone 65 Job]

Oh, this "chart component not displaying" error is really annoying @survival race 😤

[Santhosh Kumar Anandavadivel]

Hi Eslam,

Thank you for your update.

We were able to run the same StackBlitz sample in our local environment without encountering the reported exception. Based on our testing, the issue does not appear to be reproducible with the shared sample and may be related to a difference in the application setup, environment, or package configuration.

To help us investigate further, please provide the following details:

• React version used in your application.
• Node.js and npm versions.
• A screenshot of the browser's Elements tab showing the chart container and its parent elements when the issue occurs.
• A short video demonstrating the behavior, including the browser console output.

In addition, please confirm that all Syncfusion EJ2 packages in your project are using the same version. Consistent package versions across dependent components are important to ensure proper rendering and avoid unexpected runtime behavior.

Once we receive the requested information, we will perform a detailed analysis and continue assisting you toward a resolution. We look forward to your update.

Regards,

Santhosh Kumar Anandavadivel

[Gallagher Dillon]

I encountered similar issues with chart rendering in React. Ensuring proper data formatting and component lifecycle management was key to resolving it. These challenges highlight the importance of robust debugging practices in modern app development. 

# granny 1 

[Santhosh Kumar Anandavadivel]

Hi All,

Thank you for the update, Gallagher Dillon. We appreciate the additional information. This is helpful for our analysis.

We appreciate the information that you encountered a similar chart-rendering issue in React and were able to resolve it by ensuring proper data formatting and component lifecycle management. This insight is valuable and aligns with scenarios where rendering can be affected by timing, data availability, or container measurement during the component lifecycle.

Based on the stack trace, the exception occurs during the chart's SVG sizing and axis-label measurement process (SvgRenderer.setSVGSize → rotateTextSize → Axis.getMaxLabelWidth). The error indicates that the chart is attempting to calculate its dimensions, but a required DOM element or measurement target is returning a null reference during rendering.

We also noticed that the component stack includes a TabComponent, indicating that the chart is rendered within a tabbed layout. In certain scenarios, measurement-related errors can occur if a chart is rendered before its container has been fully sized or while the container is not yet visible. However, since the sample provided was verified to render correctly in our testing environment, there may be an application-specific or environment-specific factor contributing to the issue.

To help us investigate further, could you please provide the following details?

• Whether the chart is rendered inside an inactive Tab, collapsed section, dialog, or any container that is initially hidden.
• A screenshot from the browser's Elements panel showing the chart container and its parent elements when the issue occurs.
• The computed width and height of the chart container at runtime.
• The output of npm ls @syncfusion/* so we can verify that all EJ2 packages are using compatible and matching versions.
• Your Node.js version, npm version, and browser version.
• Whether the issue persists when React Strict Mode is disabled (if applicable).
• Whether the issue can be reproduced using the tested sample, or only within your application environment.
• A short video recording demonstrating the issue along with the browser console output, if possible.

Once we receive the above information, we will further analyze the scenario and assist you in identifying the root cause.

Regards,
Santhosh Kumar Anandavadivel