Syncfusion Trial License Key Fix [repack] Jun 2026

: Ensure that the license key version exactly matches the version of the Syncfusion NuGet packages or npm packages you have installed. If you upgrade your packages, you must generate and register a new key for that specific version.

Add a simple Syncfusion control (e.g., SfDataGrid ) to a form. Run the app. No watermark? No popup? It’s fixed.

The method of registration depends on the platform you are using. syncfusion trial license key fix

var licenseKey = builder.Configuration.GetValue ("SyncfusionKey"); Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense(licenseKey); Use code with caution. Automate Key Rotation via CI/CD

Syncfusion Trial License Key Fix: Troubleshooting and Best Practices : Ensure that the license key version exactly

If you're still within the trial period, you can request a new trial license key from Syncfusion. This method doesn't require any coding or technical expertise.

And then… nothing works.

If you are developing over a long period, set a reminder to update your trial key before it expires.

In your entry file (e.g., index.js or main.ts ), register the key: javascript Run the app

Upgrading to a new major version of Syncfusion (e.g., from v30 to v31) always requires a new license key. The old key will be considered invalid. Always generate a fresh key for the new major version and update it in your code.