| Error Message | Solution | |---------------|----------| | "License key not found" | You forgot to call RegisterLicense() before the first Syncfusion control loads. | | "Invalid license key" | Copy-paste the key – no extra spaces or line breaks. | | "Trial expired" | Your generated key is expired or you are using an older version. Generate a new key and update Syncfusion NuGet packages. | | "License key is for a different platform" | Generate a new key specifically for your platform (if using old-style platform-specific keys). |
Ensure no hidden spaces or characters were included when copying the key from the portal. The Community License Option syncfusion generate license key