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.NET Framework Rollup Known Issue KB4074906

 
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kosta
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PostPosted: 27/02/2018 21:20    Post subject: .NET Framework Rollup Known Issue KB4074906 Reply with quote

.NET Framework January 2018 Monthly Rollup Known Issue KB4074906 - "TypeInitializationException" or "FileFormatException" error in WPF applications

An issue has been found in the .NET Framework January 2018 Security and Quality Rollup (KB 4055002), applicable to .NET Framework 4.7.1 installed on either Windows 7 and Windows Server 2008 R2.
The .NET team has fixed the issue and re-released the January 2018 Monthly Rollup for affected Windows versions as KB 4074880. Affected machines can be fixed by using one of the solutions described later in the document.
This document describes the symptoms and solutions to resolve the issue.
The .NET Framework January 2018 Monthly Rollup Announcement blog post has been updated with this information.

This issue applies to Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 machines. Users that install the following products/updates in the following order will experience this issue.
.NET Framework 4.7.1
https://blogs.msdn.microsoft.com/dotnet/2017/10/17/announcing-the-net-framework-4-7-1/
.NET Framework January 2018 Security and Quality Rollup (KB 4055002)
https://support.microsoft.com/help/4055002
Symptoms
Code:
Windows Presentation Foundation (WPF) applications that request a fallback font or a character that is not included in the currently selected font return the following error messages:
System.TypeInitializationException
 “FileFormatException: No FontFamily element found in FontFamilyCollection
that matches current OS or greater: Win7SP1”.

Inner exception originates from: CompositeFontParser


Solution 1 - Run Fixit tool for KB4074906
Microsoft has released a Fixit tool for KB4074906, available on Windows Update, WSUS, Microsoft Update Catalog, and as a direct download.
https://support.microsoft.com/help/4074906
direct download
https://dotnetbinaries.blob.core.windows.net/kbassets/KB4074906/fixittool-KB4074906.exe

Find all on
https://github.com/dotnet/announcements/issues/53
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