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macOS Sequoia 15.5 - Getting a message that "The application couldn't be found", after an update.
I've been a Dropbox user for many years. Within the last few months, whenever Dropbox automatically updates on my Mac currently running macOS 15.5 I've noted that in Finder I will see a message above files in my Dropbox folder of "The application "Dropbox" could not be found." and nothing will sync, even though Dropbox is running. Rebooting my Mac seems to resolve the issue as everything works properly after a reboot and the message is gone in Finder. This seems like a recent bug as Dropbox didn't do this for many years on my Macs. I'm not sure how to prevent the issue from happening the next time an update rolls out, or what to do to "fix" this as an end user other than a reboot. It's not the end of the world, but it's a regression and is a bit annoying.
I've renamed my file, but the desktop app still says it can't sync it, even though it has.
Application Affected Dropbox Desktop Windows 10 Device Windows 10 on Xeon E5 Operating System/Browser (if using the web) Windows 10.0.18363.1256 Dropbox App Version (if using the app) 237.4.5655 Question or Issue Dropbox for Windows has this weird habit of declaring some files unsyncable. Despite them being valid Windows (and Linux) filenames, and despite them normally syncing, some just refuse. In this case, ROMĂNIA.pdf (that is capital A with circumflex, aka ACIRC, or 196 ASCII as far as I can tell). So, it claims to have a sync issue. When the help pops up, it claims that invalid characters can't be in the name (they aren't), and I went through the list. It's a standard file character ban. Slashes, colon, pipe, start, etc. The page indicates nothing in the file name. Eventually, I decided it's easier to just contact the person with the file and obtain the permission to just rename it (common use file), which I did, ROMĂNIA.pdf got renamed to "ROMANIA.pdf". This synced successfully (file has green check). HOWEVER. The error stays. When the attached screen is open, it flickers to the animated rectangle and back, as if it is trying to sync the file. It can't. Not when the file was there, not when it's gone. When trying to "view file" it just opens "My computer" before and after the rename, it was never helpful, I don't know why. There is no button to ignore or dismiss the error and it's stuck. This is a high availability system, no I did not restart or update the system. Dropbox updates as complained. A quick Google shows that 237.4.5655 is stable release from Nov 2025. So that works. Filesystem path to the file is 105 characters long, plus a backslash and the file name 117. So that's not it. There are no disk errors. I attempted to recreate the file where it was, and in lower and upper case, deleted, moved it and it syncs just fine. Whatever it was, it wasn't the name, despite the error message. My best guess, seeing how the error is stuck and the path doesn't open is that maybe the file was named something like ROMĂNIA/.pdf or something illegal, that threw an error, and when corrected it stuck somehow. Basically, the bug being the error message not the file. So, any ideas? Why the sync not happening? Why is the "view file" unhelpful? Why is the error not going away?
My Mac desktop app is waiting to be linked to a Dropbox account upon startup.
Application Affected Dropbox startup Device Mac Operating System/Browser (if using the web) macOS 26.1 Dropbox App Version (if using the app) 238.3.5885 Question or Issue When I start my Mac Dropbox it needs 20 tries to connect to my account. waiting to be link to a dropbox account...ERROR... waiting to be link to a dropbox account...etc. So it does connect and works fine but take couple mins and 20 tries and errors to finally connect.
The Dropbox desktop app won't start or sync on Windows 11
Application Affected Dropbox Operating System/Browser (if using the web) Windows 11 Dropbox App Version (if using the app) App won't launch but i have installed the latest version Question or Issue I noticed that Dropbox was no longer syncing my photos and files from my PC. Saw that the System Tray icon was gray and when I clicked is just said starting. I followed some other troubleshooting steps like uninstall and reinstall, removing old users (there's just me), restarting, etc. I even tried clearing the cache folder. When I start the app, it takes me through connecting and the startup options and connects to my account. At the end of this process I get the error "Couldn't start Dropbox" The text of the second link is : bn.BUILD_KEY: Dropbox bn.VERSION: 237.4.5655 bn.constants.WINDOWS_SHELL_EXT_VERSION: 88 bn.is_frozen: True machine_id: 32b5fdfb-d178-4a0f-bcb0-eccb1b7070bb pid: 37392 cwd: 'C:\\Program Files (x86)\\Dropbox\\Client' real_path='C:\\Program Files (x86)\\Dropbox\\Client' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 HOME: None appdata: 'C:\\Users\\Owner\\AppData\\Local\\Dropbox\\instance2' real_path='C:\\Users\\Owner\\AppData\\Local\\Dropbox\\instance2' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 dropbox_path: None not found parent not found sys_executable: 'C:\\Program Files (x86)\\Dropbox\\Client\\Dropbox.exe' real_path='C:\\Program Files (x86)\\Dropbox\\Client\\Dropbox.exe' mode=0o100777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 trace.__file__: 'C:\\Program Files (x86)\\Dropbox\\Client\\237.4.5655\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc' real_path='C:\\Program Files (x86)\\Dropbox\\Client\\237.4.5655\\python-packages.zip\\dropbox\\client\\ui\\common\\boot_error.pyc' not found parent not found TMP: C:\Users\Owner\AppData\Local\Temp TEMP: C:\Users\Owner\AppData\Local\Temp tempdir: 'C:\\Users\\Owner\\AppData\\Local\\Temp' real_path='C:\\Users\\Owner\\AppData\\Local\\Temp' mode=0o40777 uid=0 gid=0 parent mode=0o40777 uid=0 gid=0 Traceback (most recent call last): File "desktop/dropbox/client/main.py", line 6857, in _setup_root_for_account File "desktop/dropbox/sync_root/helpers.py", line 199, in create_root_for_account File "desktop/dropbox/foundation/futures/basic.py", line 1044, in result File "desktop/dropbox/sync_root/manager.py", line 382, in create_root File "desktop/dropbox/sync_root/handlers/windows/cloud_files.py", line 299, in register File "desktop/dropbox/sync_root/handlers/windows/cloud_files.py", line 601, in _register OSError: [WinError -2147024501] Access to the cloud file is denied I don't use the cloud back feature at all. This just started happening about a week ago. Any Ideas. The files are there and I can access through explorer, but they are not syncing. Sync is working from my Android phone for photos etc. but they are not syncing back to my desktop. Thanks
"Dropbox Unexpectedly Quit" error on two Windows 11 computers
The Windows 11 Dropbox app updated on Wednesday and now repeatedly crashes. Software version 219.45.4463. The problem is present on two W11 devices, both received the Dropbox update. Dropbox and Windows 11 has been reinstalled on one device. Both are company managed and had no issues with Dropbox prior to this update. Error message: Dropbox Unexpectedly Quit Your files are safe. Restart Dropbox to resume sync and other features. I have gone through Event Viewer but don't see any crash logs related to Dropbox.
Moving the Dropbox folder on Linux Mint 22.2 using the Dropbox desktop app won't work
I've gone over to Linux Mint 22.2, have dropbox installed. I want to move it to my data drive...no problem. I made the move using the dropbox app, pointing it to my data drive. It did the sync fine, moved the files over, and all is good. Restart. Upon restart, I get this error message, and can't do anything about it. If I do a relink, it automatically installs the dropbox back on my OS drive and ignores everything it had just done prior the restart. How do I fix this without reinstalling it on my OS drive? Thank you.Unable to rename the Dropbox folder to create a new folder.
Application Affected Dropbox Device PC Operating System/Browser (if using the web) Windows 11 For years, I've been using Dropbox on my PC without any problems. But today, something happened: for some unknown reason, the PC client lost authorization and asked me to log in again, as if I were launching it for the first time. That's when the problems started. I ALREADY HAD Dropbox on my PC. Therefore, the Dropbox folder ALREADY EXISTS! And I don't need to create a new folder! I need to put it in the same location, BUT I CAN'T! Errors: [Window Title] Dropbox [Main Instruction] Merge with existing Dropbox folder? [Content] A folder named Dropbox already exists. Do you want to add all the files in this folder to your Dropbox? [ Select another location ] [Merge] *** [Window Title] Dropbox [Main Instruction] A folder or file named Dropbox already exists. [Content] To complete the installation, Dropbox will rename your "Dropbox" folder or file. [ Select another location ] [Rename] *** [Window Title] Dropbox [Main Instruction] Unable to rename the Dropbox folder to create the Dropbox folder. [Content] To complete the installation, Dropbox needs to rename your Dropbox folder or file. Please close any open documents and try again. [Select another location] [Try again] How can I fix this error? I can't delete or rename the old folder. Error: Folder already in use The operation can't be completed because the folder or file is open in another program.
C: drive is full due to Dropbox folder size, error when trying to move Dropbox to data drive
I'm trying to move the Dropbox folder from my Windows 11 PC C: drive to a large SSD D: data drive, but receive a "Some files can't be moved" error message every time I attempt the move, leaving the computer completely full. Help! Background - I recently noticed that photo files were not automatically appearing in the Camera Uploads, just placeholder file names, which I came to realize was because the C drive on my laptop was full, preventing further file downloads. It was full because there are ~308 GB of photos in the Camera Uploads folder on the 500 GB SSD C: drive. When I start the Move Dropbox folder command under the Sync menu of Preferences, it moves ~295 GB and then gives a "Some files can't be moved" error. I've tried it twice and now have 2 almost-full Dropbox folders (with different names) on the data drive. Any idea how to get past this impasse? Use the Advanced reinstall method with Registry edits?
