"Synchronization cannot handle duplicated file or directory names."

[Philip De Lancie]

I have been using FileZilla Pro (currently on 2022 Mac Studio M1 Max on Monterey 12.7.5, and MBP Sonoma 14.5) for years to sync from a local source to a remote server. The directory structure has been more or less constant. I recently upgraded to 3.67.0 and started getting this error in a popup during sync: "Synchronization cannot handle duplicated file or directory names." There is no duplicate folder or file within any given folder in the source directory; this would be impossible as the OS (Mac Monterey 12.7.5) would not allow you to create a file with the same name in any given folder. Nor are there, so far as I can tell, any duplicate hidden files. There are 20+ folders and thousands of files in the project I'm trying to sync, but I've narrowed it down to two folders that, when removed, the problem is no longer there -- Sync continues as normal without the error popup. There are no duplicate files that I can find within either of the folders, so I assume that the problem is with the folder names. These folders do have the same name, but they're not in the same directory, thus the path is different, and as I said these names have been constant for years without creating any sync problem.

At this point I can only update my site manually (not ideal; syncing is why I went Pro). I upgraded to 3.67.1 today and am still experiencing the error.

[Philip De Lancie]

Screenshot with error popup

[Tim Kosse]

Are there any files with non-ASCII characters? Depending on encoding and normalization forms, two filenames with different byte sequence may test as equal.

[Philip De Lancie]

Hi Tim. thanks for the response.

• I classified this as a blocker (for me) because, as noted, it prevents me from updating my site using sync.
• Here are the paths of the only directories that, instead of syncing, cause the mentioned error (even though they are not in the same directory):
• ​sftp://kentikkb-proto@kentikkb.sftp.wpengine.com:2222/v3/z_Figures
• ​sftp://kentikkb-proto@kentikkb.sftp.wpengine.com:2222/v4/z_Figures

NOTES:

• The syncing problem is new even though the content of the source v3/z_Figures folder hasn't been changed since 2020.
• There's also a z_Figures folder in v0, but that causes no problem.

My understanding of your non-ASCII question is that it was about the names of those directories. Does the above answer your question?

[Philip De Lancie]

I've added a screenshot to clarify my earlier statement about "v0"

[Philip De Lancie]

Shows directory structure in which FZ is finding the names of two directories to be "duplicate" while a 3rd directory of the same name at equivalent path is not considered a duplicate.

[Philip De Lancie]

Hi. this issue is ongoing, and continues to be a significant problem for me. It's been over 5 weeks now, so I'm wondering what the expected time frame is for addressing this. Thank you.

[Philip De Lancie]

Hi Tim. It's been over 4 months now with no indication of whether this bug is being worked on. The behavior continues in the newest version (3.68.1). Since syncing is the reason I upgraded to Pro, and I can now only update my site by erasing everything and reuploading, it is a problem. Can you please let me know whether this is something that is on your radar to be fixed? Thank you.