A license key generated for a specific major version (e.g., v24.x) will not work for another major version (e.g., v25.x).
string syncfusionKey = Environment.GetEnvironmentVariable("SYNCFUSION_LICENSE_KEY"); if (!string.IsNullOrEmpty(syncfusionKey)) Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense(syncfusionKey); Use code with caution.
: Verify you are using the correct license key for the specific version installed in your project. syncfusion generate license key upd
Here are some best practices to keep in mind when generating and managing Syncfusion license keys:
Syncfusion requires you to register the key programmatically at the application entry point. This process varies slightly by platform. A license key generated for a specific major version (e
, meaning you need a new key whenever you upgrade your Syncfusion NuGet packages to a new minor or major version. Syncfusion Step 1: Generate the Key : Sign in to your Syncfusion Account Navigate to Downloads : Go to the License & Downloads section on the Syncfusion Dashboard Select Product : Locate your active subscription or trial and click on Get License Key Select Version : Choose the specific (e.g., ASP.NET Core, Flutter, React) and the
To avoid "License Violation" warnings or functionality restrictions: Here are some best practices to keep in
If you provide these details, I can give you the specific code snippet for your setup.
| Mistake | Fix | |--------|-----| | Placing RegisterLicense after rendering components | Move it to the earliest execution point (e.g., Main , Program.cs , constructor). | | Using an old key after renewal | Always generate a fresh key—old keys expire. | | Forgetting to update all projects | In a microservices or multi-project solution, update entry point. |
// main.dart import 'package:syncfusion_localizations/syncfusion_localizations.dart'; import 'package:syncfusion_flutter_core/core.dart'; void main() SyncfusionLicenseProvider.registerLicense('YOUR_NEW_UPDATED_LICENSE_KEY_HERE'); runApp(MyApp()); Use code with caution. 🚨 Troubleshooting Common License Key Errors
Generally, the same key works across different frameworks within the same version.