Manually delete the bin and obj folders in your project directory.
By following these steps, you should eliminate the trial watermark and ensure your application runs smoothly in production.
Syncfusion offers a for:
Fixing a Syncfusion trial license key issue typically involves resolving , platform inconsistencies , or registration timing . Syncfusion license keys are specific to both the major version (e.g., v23.x.x vs. v24.x.x) and the platform (e.g., Blazor vs. ASP.NET Core). Common Causes & Direct Fixes
Syncfusion has a known issue where the trial key expiration is cached at the machine level. Fix it like this: syncfusion trial license key fix
If you are seeing a "License Expired" message or a popup dialog in your Syncfusion application, it usually means the 30-day trial period has concluded, or the licensing framework requires a valid key to compile without warnings.
Here is how to register the key across different popular frameworks: .NET Core / ASP.NET Core / Blazor
To avoid issues related to the Syncfusion trial license key:
import React from 'react'; import ReactDOM from 'react-dom/client'; import App from './App'; import registerLicense from '@syncfusion/ej2-base'; // Register Syncfusion license registerLicense('YOUR_ACTUAL_LICENSE_KEY_HERE'); const root = ReactDOM.createRoot(document.getElementById('root')); root.render( ); Use code with caution. Manually delete the bin and obj folders in
Open Program.cs (WinForms) or App.xaml.cs (WPF) and register the license in the main entry point:
In Flutter applications, call the registration method inside the main() function before running the app.
You must register the license key before rendering any Syncfusion components. This is typically done in the global entry point of your application. For Blazor / ASP.NET Core ( Program.cs ) Place the registration code before builder.Build(); :
In .NET applications, register the license in your Program.cs file immediately after creating the builder. Syncfusion license keys are specific to both the
The most common mistake is using an expired key or a key for the wrong version. Log in to your page. Select "Get License Key" from the dashboard.
Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense( "YOUR_KEY_HERE" Use code with caution. Copied to clipboard React / Vue / Angular: javascript registerLicense '@syncfusion/ej2-base' ; registerLicense( 'YOUR_KEY_HERE' Use code with caution. Copied to clipboard SyncfusionLicense.registerLicense( YOUR_KEY_HERE Use code with caution. Copied to clipboard 3. Clear the Cache (Critical Fix)
In .NET MAUI, open your MauiProgram.cs file and register the key inside the CreateMauiApp method.
Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense(licenseKey);