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Error displaying thumbnails


when testing version 3.6 of the viewer , not charging
properly thumbnails.<o:p></o:p>

I am using the example of mvc front end<o:p></o:p>

The error occurs in the viewercontroller in method


Hi Fredy,

Thanks for using GroupDocs.Viewer for .NET.

We apologize for inconvenience. We shall be back after some analysis and investigation of the issue you mentioned. Please stay tuned with us.

Warm Regards

Hi Fredy,

Thanks for your patience.

We successfully reproduced your issue at our end. Actually, the issue is related to the front end document viewer application and it appears when the API is working in evaluation mode. Therefore, the issue will be vanished if you use the API in licensed mode. If you have not purchased the license you can still use the API in full mode using temporary license (valid for 30 days) which will resolve your issue. To get the temporary license please follow the instructions here.

However, I am also logging this issue as a bug in GitHub issues. We shall investigate the issue in order to provide the fix. In case of any update related to this, we will notify you here. You can also follow this link for further updates.

In case of any confusion, please feel free to contact us.

Warm Regards

Dear Customer,

Your reported issue, logged in GitHub issues as, has been fixed. Please download the updated source code of the application.

Warm Regards