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: Ensure you are using the latest version of the Syncfusion product. Syncfusion frequently releases updates that may fix known issues, including licensing problems.
Create a syncfusion-license.txt file in the project root [1]. Add your license key string to this file. Run the application [1]. In your Startup.cs or Program.cs file, register the key: Syncfusion.Licensing Use code with caution.
import registerLicense from '@syncfusion/ej2-base' ; registerLicense( 'YOUR_KEY_HERE' ); Use code with caution. Copied to clipboard 3. Common Fixes for Licensing Errors syncfusion trial license key fix
If you are still experiencing issues with your license activation, let me know:
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. : Ensure you are using the latest version
Some users may encounter issues with the Syncfusion trial license key, including:
: If you're encountering issues and can't resolve them through the above steps, reach out to Syncfusion's support team. They can provide specific guidance, especially if your issue is related to a purchased license. Add your license key string to this file
: The RegisterLicense method is missing from your application startup code.
Syncfusion components do not automatically "know" your license status via a config file or dashboard login. Instead, they require a programmatic handshake. If the license is not registered before the UI components are initialized, the library defaults to its "evaluation" state, triggering the watermark. The Fix: Strategic Registration
For a app, the same logic applies: register the key in Program.cs before builder.Build() . If you are using a Razor Class Library (RCL) that contains Syncfusion components, you should also register the license within the RCL's Program.cs to ensure any consuming app inherits the registration.
