Hi Wei,
This error occurs because of the wrong licensing information embedded in the exe.
Could you please refer this knowledge base for the detailed information and steps to clear this issue?
http://www.syncfusion.com/support/kb/studio/Default.aspx?ToDo=view&questId=35Please note:
This KB is applicable for all the 4.x versions. Please replace 4.3.0.30 in the places of 4.2.0.37 in the KB.
Please let me know if this helps.
Thank you for your interest in Syncfusion products.
Regards,
Nanda