[Solved] Telerik.DataAccess.Fluent enhancer fails to run on Windows ARM64

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Stu
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Stu asked on 19 Aug 2026, 12:06 PM

I'm supporting a classic app that still uses the Telerik.DataAccess.Fluent package 2020.0.428.1 (used in SiteFinity CMS) and there is an issue with the version of Mono.Cecil in the package (0.9.6.0) that fails to "enhance" when compiling under Visual Studio on Windows arm64

Unhandled Exception: System.NotSupportedException: Specified method is not supported.
   at Mono.Cecil.PE.ImageReader.ReadArchitecture()
   at Mono.Cecil.PE.ImageReader.ReadImage()
   at Mono.Cecil.PE.ImageReader.ReadImage(Disposable`1 stream, String file_name)
   at Mono.Cecil.ModuleDefinition.ReadModule(String fileName, ReaderParameters parameters)
   at ceciltest.Program.Main(String[] args)

The defect has been fixed in Cecil (https://github.com/jbevain/cecil/issues/337) so it would be good to get this resolved for future use, if not for those SiteFinity users, but for the 4000+ users who are still downloading the library

NuGet Gallery | Package Downloads for Telerik.DataAccess.Fluent

 

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Dimo
Telerik team
answered on 19 Aug 2026, 12:20 PM

Hi Stu,

This forum is dedicated to the products under the Telerik brand. Support for Sitefinity products is provided through the Sitefinity support channels when there is an active maintenance contract. Please refer to the Sitefinity Support guide for more information.

Regards,
Dimo
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