We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. (Last updated on: November 16, 2018).
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

Syncfusion.Licensing error when using File Format library in .NET Standard

Syncfusion Licensing error may occur under the below scenario for the File Format assemblies in .NET Standard.. 

  1. New Project -> ASP.NET Core Web Application
  2. Select .NET Framework


  1. Add Syncfusion.DocIO.Net.Core (or other File Format NuGet) from nuget.org
  2. Use the below code snippet, the below exception occurs



If this is the scenario you are using, we suggest you to use ”Syncfusion.DocIO. WinForms” NuGet which is available in the below NuGet feed to overcome this issue.   




Also, we recommend using the following NuGet packages in your ASP.NET Core application based on your targeting framework. 


Target framework 

Package Name 

NuGet feed source 

.NET Framework 

Syncfusion.DocIO. WinForms

Syncfusion.Pdf. WinForms

Syncfusion.Presentation. WinForms

Syncfusion.XlsIO. WinForms






.Net Core 


Syncfusion.Pdf. Net.Core

Syncfusion.Presentation. Net.Core

Syncfusion.XlsIO. Net.Core






The below link describes how to refer the packages from the NuGet link. 



Article ID: Published Date: Last Revised Date: Platform: Control:
9162 08/16/2018 10/30/2018 WinForms PDF
Did you find this information helpful?
Add Comment
You must log in to leave a comment

Please sign in to access our KB

or the page will be automatically redirected to sign-in page in 10 seconds.

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon