If you’ve integrated Syncfusion controls into your application, nothing breaks your flow quite like a popup or console warning shouting: "This application was built using a trial version of Syncfusion Essential Studio."
You must register the license key before any Syncfusion components are rendered. Here is where to apply the fix based on your tech stack. For ASP.NET Core / Blazor
Manually delete the bin and obj folders in your project directory. syncfusion trial license key fix
Sometimes you apply the code fix, but the trial warning remains. This is often due to cached build artifacts.
In your entry point file (usually App.js , main.ts , or index.js ), register the license: javascript Sometimes you apply the code fix, but the
By following these steps, you should eliminate the trial watermark and ensure your application runs smoothly in production.
Does the key version match your NuGet package version exactly? Have you cleared your bin and obj folders? Does the key version match your NuGet package
// Program.cs using Syncfusion.Licensing; var builder = WebApplication.CreateBuilder(args); // Register Syncfusion license SyncfusionLicenseProvider.RegisterLicense("YOUR_ACTUAL_KEY_HERE"); var app = builder.Build(); Use code with caution. For React / Angular / Vue (Essential JS 2)
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.