Failed to import NetLog

[logonzal]

I am running 

Progress Telerik Fiddler Classic
v5.0.20253.3311 for .NET 4.6.2
Built: Monday, March 31, 2025
64-bit AMD64, VM: 74.0mb, WS: 145.0mb
.NET 4.8 WinNT 10.0.26100.0

 

When trying to import a net-export JSON file it fails with

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Failed to import NetLog
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Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

Could not load type 'JSONParseErrors' from assembly 'Fiddler, Version=5.0.20253.3311, Culture=neutral, PublicKeyToken=null'.

Type: System.TypeLoadException
Source: FiddlerImportNetlog
   at FiddlerImportNetlog.NetlogImporter..ctor(StreamReader oSR, List`1 listSessions, EventHandler`1 evtProgressNotifications)

   at FiddlerImportNetlog.NetLogFormatImport.ImportSessions(String sFormat, Dictionary`2 dictOptions, EventHandler`1 evtProgressNotifications)


Fiddler v5.0.20253.3311 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.26100.0] 
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OK   
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[Lini]

Hi,

You need to update to the latest version of the NetLog extension in order to use it in the newest Fiddler Classic release. Please go to https://github.com/ericlaw1979/FiddlerImportNetlog/releases/tag/1.3.7 and download the NetLog v1.3.7 extension.

Regards,
Lini
Progress Telerik