I get the following exception on both of my computers - one with OS Win10 2004, one with Win10 1909.
With version 4.6.20171.14978 everything works fine. But when installing the current version (even a clean install) fiddler fails at startup with a message that states that a foldername is invalid.
I tried to run it as administrator, as normal user, after several resatarts and on two computers - it's always the same. Other topics in the forum didn't help.
Here is the exception:
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Awww, Fiddlesticks!
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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.
Bei der Komposition ist ein Kompositionsfehler aufgetreten. Die Ursache wird unten angegeben. Die CompositionException.Errors-Eigenschaft liefert genauere Informationen.
1) Der Verzeichnisname ist ungültig
Ergebnis: Ausnahme beim Erstellen einer Instanz vom Typ "Telerik.NetworkConnections.NetworkConnectionsManager".
Ergebnis: Teil "Telerik.NetworkConnections.NetworkConnectionsManager" kann nicht aktiviert werden.
Element: Telerik.NetworkConnections.NetworkConnectionsManager --> Telerik.NetworkConnections.NetworkConnectionsManager --> AssemblyCatalog (Assembly="Telerik.NetworkConnections, Version=0.1.2.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a")
Ergebnis: Export "Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager")" kann nicht aus dem Teil "Telerik.NetworkConnections.NetworkConnectionsManager" abgerufen werden.
Element: Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager") --> Telerik.NetworkConnections.NetworkConnectionsManager --> AssemblyCatalog (Assembly="Telerik.NetworkConnections, Version=0.1.2.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a")
Type: System.ComponentModel.Composition.CompositionException
Source: System.ComponentModel.Composition
bei System.ComponentModel.Composition.Hosting.CompositionServices.GetExportedValueFromComposedPart(ImportEngine engine, ComposablePart part, ExportDefinition definition)
bei System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportedValue(CatalogPart part, ExportDefinition export, Boolean isSharedPart)
bei System.ComponentModel.Composition.Primitives.Export.get_Value()
bei System.ComponentModel.Composition.ExportServices.GetCastedExportedValue[T](Export export)
bei Fiddler.Proxy.() in C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\Proxy.cs:Zeile 283.
bei Fiddler.Proxy..ctor(Boolean isPrimary, ProxySettings upstreamProxySettings) in C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\Proxy.cs:Zeile 210.
bei Fiddler.frmViewer.(String[] ) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:Zeile 3339.
bei Fiddler.frmViewer.(String[] ) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:Zeile 3164.
Fiddler v5.0.20202.18177 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.19041.0]
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OK
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