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Loading custom MIME mappings failed

Just before the update, no issue, after the update, this occurred. Verified on other machines as well.

File permissions are read, write, execute, to root of the drive

 

 

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Loading custom MIME mappings failed
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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.

Access to the path 'D:\Users\josh\Documents\Fiddler2\CustomMimeMappings.xml' is denied.

Type: System.UnauthorizedAccessException
Source: mscorlib
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)

   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)

   at System.IO.FileStream..ctor(String path, FileMode mode)

   at Fiddler.XmlFileMimeMappings..ctor(String filePath) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\MimeMapping\XmlFileMimeMappings.cs:line 38

   at Fiddler.frmViewer.?(Object , EventArgs ) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 9816


Fiddler v4.6.20173.38786 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 6.1.7601 Service Pack 1]
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OK   
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  • Guest
  • Sep 21 2017
  • Under review
Bug
  • Attach files
  • Guest commented
    September 27, 2017 16:50

    Thank you,

    the file does exist on this path, I can open this with notepad, it is not marked read-only. I do not have anything like Dropbox or OneDrive installed on this OS. 

  • Eric Lawrence commented
    September 23, 2017 18:03

    If you look in Windows Explorer, does this file exist? If you open it in Notepad, is it read? Do you have anything non-default, like Dropbox or OneDrive File System integration installed?