Could not load type 'Fiddler.WebFormats.JSON' from assembly 'Fiddler
It seems that the extension is incompatible with the 2025 versions of Fiddler Classic.
I get this error:
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text ************** System.TypeLoadException: Could not load type 'Fiddler.WebFormats.JSON' from assembly 'Fiddler, Version=5.0.20253.3311, Culture=neutral, PublicKeyToken=null'. at Google.Protobuf.FiddlerInspector.ProtobufInspectorView.UpdateData() at Google.Protobuf.FiddlerInspector.ProtobufInspectorView.btnBrowse_Click(Object sender, EventArgs e) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
It might be related to https://feedback.telerik.com/fiddler/1683387-march-update-broke-fiddler-public-api
Progress Telerik Fiddler Classic
v5.0.20253.3311 for .NET 4.6.2 Built: 31. marts 2025
Yes, WebFormats API was removed. I ask Copilot to write a new JSON parse based on System.Runtime.Serialization.Json. But I have not tested the new code as I don't have protobuf file right now. Could you please test it?
Matthew
发件人: mast76 @.> 发送时间: 2025年6月25日 16:30 收件人: BlueMatthew/ProtobufInspector @.> 抄送: Subscribed @.***> 主题: [BlueMatthew/ProtobufInspector] Could not load type 'Fiddler.WebFormats.JSON' from assembly 'Fiddler (Issue #5)
[https://avatars.githubusercontent.com/u/5029645?s=20&v=4]mast76 created an issue (BlueMatthew/ProtobufInspector#5)https://github.com/BlueMatthew/ProtobufInspector/issues/5
It seems that the extension is in compatible with the 2025 versions of Fiddler Classic.
I get this error:
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text ************** System.TypeLoadException: Could not load type 'Fiddler.WebFormats.JSON' from assembly 'Fiddler, Version=5.0.20253.3311, Culture=neutral, PublicKeyToken=null'. at Google.Protobuf.FiddlerInspector.ProtobufInspectorView.UpdateData() at Google.Protobuf.FiddlerInspector.ProtobufInspectorView.btnBrowse_Click(Object sender, EventArgs e) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
It might be related to https://www.telerik.com/forums/new-version-of-classic-fiddler-doesn-t-find-type-fiddler-webformats-json-jsondecode
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