: Check your package.json or NuGet references. If your packages are v27.1.x , your license key must be generated specifically for v27.1.x .
If you exceed the community license revenue limit, purchase a Developer License ($995/year at the time of writing). The key format changes (starts with NT... or MT... ), but the registration code remains identical. syncfusion trial license key fix
A: Yes. The license key is global for the entire Syncfusion Essential Studio suite. : Check your package