This is a workaround for the Lightroom 6, Mac, error message "Cannot upload because Lightroom could not create the destination directory." when using the FTP Plugin. It may apply partially to your question and certainly to those of others here.
You can edit the a plugin file in TextEdit to the extend that the faulty function is being disabled. The hack disables all sorts of verifications, though. I made it work that way. Because I know for sure that the target directory does exist, I do not need any target directory check by the plugin. You do this on your own risk. Here is what I did on a Mac:
1. Go to /Applications/LR6/ftp_upload.lrdevplugin
Note: "LR6" stands for the folder name where your local Lightroom Application resides on your Mac. So you replace "LR6" with the name of that folder.
2. Open FtpUploadTask.lua in TextEdit (or any other text editor)
3. comment (mask) the directory check routine by adding "--" at the beginning of each line, starting at "if exists == false then", down to, including, "end" of that verification routine. In order for you to find the right routine in the code, I have attached the entire code below. Instead of commenting the directory verification check routine, may be able to actually erase this portion entirely, too. I commented it because I wasn´t sure if it might be needed in other instances - so that It can then be uncommented:
-- if exists == false then
-- local success = ftpInstance:makeDirectory( '' )
-- if not success then
-- This is a possible situation if permissions don't allow us to create directories.
-- LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/CannotMakeDirectoryForUpload=Cannot upload because Lightroom could not create the destination directory." )
-- end
--elseif exists == 'file' then
-- Unlikely, due to the ambiguous way paths for directories get tossed around.
-- LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/UploadDestinationIsAFile=Cannot upload to a destination that already exists as a file." )
-- elseif exists == 'directory' then
-- Excellent, it exists, do nothing here.
--else
-- Not sure if this would every really happen.
-- LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/CannotCheckForDestination=Unable to upload because Lightroom cannot ascertain if the target destination exists." )
-- end
The entire file FtpUploadTask.lua now looks like this:
--[[----------------------------------------------------------------------------
FtpUploadTask.lua
Upload photos via Ftp
--------------------------------------------------------------------------------
ADOBE SYSTEMS INCORPORATED
Copyright 2007 Adobe Systems Incorporated
All Rights Reserved.
NOTICE: Adobe permits you to use, modify, and distribute this file in accordance
with the terms of the Adobe license agreement accompanying it. If you have received
this file from a source other than Adobe, then your use, modification, or distribution
of it requires the prior written permission of Adobe.
------------------------------------------------------------------------------]]
-- Lightroom API
local LrPathUtils = import 'LrPathUtils'
local LrFtp = import 'LrFtp'
local LrFileUtils = import 'LrFileUtils'
local LrErrors = import 'LrErrors'
local LrDialogs = import 'LrDialogs'
--============================================================================--
FtpUploadTask = {}
--------------------------------------------------------------------------------
function FtpUploadTask.processRenderedPhotos( functionContext, exportContext )
-- Make a local reference to the export parameters.
local exportSession = exportContext.exportSession
local exportParams = exportContext.propertyTable
local ftpPreset = exportParams.ftpPreset
-- Set progress title.
local nPhotos = exportSession:countRenditions()
local progressScope = exportContext:configureProgress {
title = nPhotos > 1
and LOC( "$$$/FtpUpload/Upload/Progress=Uploading ^1 photos via Ftp", nPhotos )
or LOC "$$$/FtpUpload/Upload/Progress/One=Uploading one photo via Ftp",
}
-- Create an FTP connection.
if not LrFtp.queryForPasswordIfNeeded( ftpPreset ) then
return
end
local ftpInstance = LrFtp.create( ftpPreset, true )
if not ftpInstance then
-- This really shouldn't ever happen.
LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/InvalidFtpParameters=The specified FTP preset is incomplete and cannot be used." )
end
-- Ensure target directory exists.
local index = 0
while true do
local subPath = string.sub( exportParams.fullPath, 0, index )
ftpInstance.path = subPath
local exists = ftpInstance:exists( '' )
-- if exists == false then
-- local success = ftpInstance:makeDirectory( '' )
-- if not success then
-- This is a possible situation if permissions don't allow us to create directories.
-- LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/CannotMakeDirectoryForUpload=Cannot upload because Lightroom could not create the destination directory." )
-- end
--elseif exists == 'file' then
-- Unlikely, due to the ambiguous way paths for directories get tossed around.
-- LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/UploadDestinationIsAFile=Cannot upload to a destination that already exists as a file." )
-- elseif exists == 'directory' then
-- Excellent, it exists, do nothing here.
--else
-- Not sure if this would every really happen.
-- LrErrors.throwUserError( LOC "$$$/FtpUpload/Upload/Errors/CannotCheckForDestination=Unable to upload because Lightroom cannot ascertain if the target destination exists." )
--end
if index == nil then
break
end
index = string.find( exportParams.fullPath, "/", index + 1 )
end
ftpInstance.path = exportParams.fullPath
-- Iterate through photo renditions.
local failures = {}
for _, rendition in exportContext:renditions{ stopIfCanceled = true } do
-- Wait for next photo to render.
local success, pathOrMessage = rendition:waitForRender()
-- Check for cancellation again after photo has been rendered.
if progressScope:isCanceled() then break end
if success then
local filename = LrPathUtils.leafName( pathOrMessage )
local success = ftpInstance:putFile( pathOrMessage, filename )
if not success then
-- If we can't upload that file, log it. For example, maybe user has exceeded disk
-- quota, or the file already exists and we don't have permission to overwrite, or
-- we don't have permission to write to that directory, etc....
table.insert( failures, filename )
end
-- When done with photo, delete temp file. There is a cleanup step that happens later,
-- but this will help manage space in the event of a large upload.
LrFileUtils.delete( pathOrMessage )
end
end
ftpInstance:disconnect()
if #failures > 0 then
local message
if #failures == 1 then
message = LOC "$$$/FtpUpload/Upload/Errors/OneFileFailed=1 file failed to upload correctly."
else
message = LOC ( "$$$/FtpUpload/Upload/Errors/SomeFileFailed=^1 files failed to upload correctly.", #failures )
end
LrDialogs.message( message, table.concat( failures, "\n" ) )
end
end
- Reload the PlugIn in the Lightroom PlugIn Manager or restart Lightroom
- Try again - in my case ftp suddenly worked again, I was able to upload image to a given folder on a SFTP Server.
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