SyncTrayzor crashes with System.IO.PathTooLongException on "longer" paths

[berrnd]

Syncthing v0.11.0 now supports extended-length paths, since I upgraded SyncTrayzor randomly crashed, I just tried to reproduce this - it happens everytime when a "longer" path has changed...

Log snippet (found no errors there):

2015-04-27 19:42:27.2717 [Info] SyncTrayzor.Services.DirectoryWatcher: Path Changed: C:\Users\Bernd Bestel\Syncthing\CentralizedApplications\AndroidStudio\_gradledata\wrapper\dists\gradle-1.12-all\4ff8jj5a73a7zgj5nnzv1ubq0\gradle-1.12\samples\userguide\multiproject\dependencies\javaWithCustomConf\services\personService\src\test\java\org\gradle\sample\services\PersonServiceTessssssssst.java 
2015-04-27 19:42:27.2717 [Debug] SyncTrayzor.SyncThing.ApiClient.SyncThingApiClient: Scanning folder: CentralizedApplications subPath: AndroidStudio/_gradledata/wrapper/dists/gradle-1.12-all/4ff8jj5a73a7zgj5nnzv1ubq0/gradle-1.12/samples/userguide/multiproject/dependencies/javaWithCustomConf/services/personService/src/test/java/org/gradle/sample/services/PersonServiceTessssssssst.java 

Problemsignatur:
  Problemereignisname:  CLR20r3
  Problemsignatur 01:   SyncTrayzor.exe
  Problemsignatur 02:   1.0.16.0
  Problemsignatur 03:   55376a6f
  Problemsignatur 04:   mscorlib
  Problemsignatur 05:   4.0.30319.34209
  Problemsignatur 06:   53489fcf
  Problemsignatur 07:   479b
  Problemsignatur 08:   457
  Problemsignatur 09:   System.IO.PathTooLongException
  Betriebsystemversion: 6.1.7601.2.1.0.256.1
  Gebietsschema-ID: 1031
  Zusatzinformation 1:  b544
  Zusatzinformation 2:  b544bf0786efbafa9b00f990b37ca4e1
  Zusatzinformation 3:  4216
  Zusatzinformation 4:  4216977a9835eb779de4fff71429fe17

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[canton7]

Oh, lovely, Thanks for reporting this.

Can you open up the event viewer? Go to Start Menu -> Search for 'Event Viewer' -> Windows Logs -> Application. You should find two 'Error' entries for the crash (although there might only be one). Can you give me the details in there?

[berrnd]

The first entry contains no new information, the second one has the stack trace, here it is:

Anwendung: SyncTrayzor.exe
Frameworkversion: v4.0.30319
Beschreibung: Der Prozess wurde aufgrund eines Ausnahmefehlers beendet.
Ausnahmeinformationen: System.IO.PathTooLongException
Stapel:
   bei System.IO.Path.NormalizePath(System.String, Boolean, Int32, Boolean)
   bei System.IO.Path.GetPathRoot(System.String)
   bei System.IO.RenamedEventArgs.get_OldFullPath()
   bei SyncTrayzor.Services.DirectoryWatcher.OnRenamed(System.Object, System.IO.RenamedEventArgs)
   bei System.IO.FileSystemWatcher.CompletionStatusChanged(UInt32, UInt32, System.Threading.NativeOverlapped*)
   bei System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)

[AudriusButkevicius]

Welcome to the land of syncthing's pain.
\\?\ is the answer 💃

[berrnd]

No, Syncthing is now auto-converting the long paths into a path with \\?\ (I think, regarding the logs).

There are also no errors in the Syncthing console for too long paths (as in v0.10), and Syncthing itself isn't crashing, just SyncTrayzor, so this must be a problem here...

[canton7]

Hrm, I'm going to have to dig into this - nothing obvious on how to make the filesystem watcher accept long paths.

As a workaround, you can disable the directory watching for that folder, in the settings.

I'm afraid I have Jury Duty for the next couple of weeks, so my ability to work on SyncTrayzor is somewhat impaired. I'll hopefully be able to get out a fix soonish, but no promises 😒