Troubleshooting WordsProcessing

This article provides solutions to common issues that you may observe when working with the WordsProcessing library.

Issue: "NotSupportedException: The requested security protocol is not supported." when importing HTML with images in Windows Server

You get this error when importing an HTML file containing images in a Windows Server environment that does not have .NET 4.8 installed. The required TLS security protocols are missing and are causing the observed behavior.

Solution

You can choose one of the following:

• Install .NET 4.8 on the Windows Server.
• Subscribe to the LoadImageFromUri event to load external resources that are not included in the HTML.