2025 sparked some incredible conversations across our community 👩💻. Discover the highlights and see what’s ahead in 2026.
Forum Discussion
Minh Anh V.
10 years agoNew member | Level 1
Why am I getting a 'Couldn't start Dropbox' permission error?
Here's the message that I get:
Couldn't start Dropbox.
This is usually because of permission error. Storing your home folder on a network share can also cause an error.
This often happens with users who may have migrated old data and settings from another Mac to their current computer.
Operating system permissions prevent files from being viewed or edited by unauthorized logins. Permissions can be set any number of ways and can be restored manually through a fairly simple process. Please note that it is very important to follow these steps specifically as failure to do so may result in other issues. On a Mac OS X you can do the following:
1) Make sure the Dropbox desktop application is running
2) Click on the Dropbox icon in your menu bar and then click your profile picture or initials
3) Select 'Preferences'
4) Click on the 'Account' tab
5) Hold down the 'Option/Alt' key
6) Click on the 'Fix Permissions' button (make sure you're still holding down the 'Option' key.
This will allow Dropbox access to your home folder, Dropbox folder, and any required settings.
30 Replies
Replies have been turned off for this discussion
- Kaz10 years ago
Dropbox Staff
@ John, could you try the following? It is another way to repair your permissions:
1) Select your home directory (the folder named after your computer's login) and press Command-I to "Get Info"
2) Scroll down to the "Sharing & Permissions" section at the bottom of the Get Info window
3) If everything is grayed out, click on the gold lock at the bottom right of the window. You'll be prompted for your login password. You'll need admin access to edit the permissions. If you are unable to unlock these privileges, talk to your system administrator to give you access to this folder.
4) Your name should already be on the list of sharing and permissions. If you aren't listed, then add yourself by clicking the + button.
5) Once your user is added, click your name and then click the gear menu at the bottom middle of the window, and choose "Make me the owner". If this option is grayed out you can skip to step 6.
6) Click the gear again and choose "Apply to enclosed items". - Kathy T.510 years agoNew member | Level 1
I had the same problem after migrating data and settings to a new Mac. I tried to uninstall and then reinstall Dropbox, but still no luck. What finally did the trick was removing the Dropbox application settings. Instructions are in the Dropbox Help Center, under For Advanced Users:
- John D.9710 years agoNew member | Level 1
Thanks Kathy - I tried that but it couldn't find the folder. Thanks Kaz, your solution worked fine.
- Ed10 years ago
Dropbox Staff
Hi Guy
Could you please follow these steps:
On your Dropbox client (desktop version):
- Click on the Dropbox icon and then the "gear" at the bottom right
- Open the Preferences pane
- Click the Account tab.
- Hold down the Option key and the "Unlink This Computer" button will become a "Fix Permissions" button.
- Click the Fix Permissions button and quit Dropbox.
- Restart your computer.
This should fix the problem. If you're still having problems, please let me know.
- Peter K.1910 years agoNew member | Level 1
Respond to latest answer. My tab will not change, how long do i need to hold the option key? It stays in " Unlink this computer".
- Dave B.5110 years agoNew member | Level 1
@Kathy T.
Thanks
Worked for me - Steven J.510 years agoNew member | Level 1
I have the same issue. Your steps require Dropbox to remain open, but the error dialog is modal and prevents access to the Preferences UI. When you close the error dialog, the entire application closes.
- Travis M.110 years agoNew member | Level 1
I have this issue too. The client will not launch
Could start Dropbox: https://www.evernote.com/l/AEH6CprAHDpIFoRW4_vdVregUExGriG4gB0It is trying to launch from the path: '/Users/tRavI/Dropbox'
However the path it should be launching from is '/Users/tRavIs/Dropbox'
There needs to be an "s" in the "tRavIs" directory. How do I update this path? - Annalise H.10 years agoNew member | Level 1
Thanks Kathy - worked for me!
- Michael H.16510 years agoNew member | Level 1
i followed Kaz' second suggestion and unfortunately after i chose "Make me the owner" i got over a hundred error messages about faulty extensions/permissions during the processing period (which was many minutes in duration). i tried repairing the permissions in disk utility after restarting holding command-r, the computer froze during the process, and now it won't boot up at all.
About Apps and Installations
Have a question about a Dropbox app or installation? Reach out to the Dropbox Community and get solutions, help, and advice from members.
The Dropbox Community team is active from Monday to Friday. We try to respond to you as soon as we can, usually within 2 hours.
If you need more help you can view your support options (expected response time for an email or ticket is 24 hours), or contact us on X, Facebook or Instagram.
For more info on available support options for your Dropbox plan, see this article.
If you found the answer to your question in this Community thread, please 'like' the post to say thanks and to let us know it was useful!