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Can't start dropbox because of permission error.

Minh Anh V. New member | Level 1
New member | Level 1

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.

1 Accepted Solution

Accepted Solutions

Re: Can't start dropbox because of permission error.

Dropboxer
Dropboxer

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 on the gear in the Notifications panel

3) Select 'Preferences'

4) Click on the 'Account' tab

5) Hold down the 'Option' 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.

View solution in original post

30 Replies 30

Couldn't start Dropbox This is usually because of a permissions error. Storing your home folder on a network share can also cause an error.

Guy L. New member | Level 1
New member | Level 1

Hi I can't start dropbox on my laptop. I get this message

"Couldn't start Dropbox This is usually because of a permissions error. Storing your home folder on a network share can also cause an error."

I had a previous version running fine. so I uninstalled it and installed the latest version from dropbox website. Then it told me the folder dropbox already existed and it will be renamed and I clicked install. That's all I know. It has also referenced a log file and I have pasted the contents of this below.

Please help I just upgraded to a pro account earlier today

bn.BUILD_KEY: Dropbox
bn.VERSION: 3.0.5
bn.DROPBOXEXT_VERSION: 24
bn.is_frozen: True
pid: 2308
cwd: u'C:\Users\Guy\AppData\Roaming\Dropbox\bin'
real_path=u'C:\Users\Guy\AppData\Roaming\Dropbox\bin'
mode=040777 uid=0 gid=0
parent mode=040777 uid=0 gid=0
HOME: u'C:\Users\Guy'
appdata: u'C:\Users\Guy\AppData\Roaming\Dropbox\instance2'
real_path=u'C:\Users\Guy\AppData\Roaming\Dropbox\instance2'
mode=040777 uid=0 gid=0
parent mode=040777 uid=0 gid=0
dropbox_path: u'C:\Users\Guy\Dropbox'
real_path=u'C:\Users\Guy\Dropbox'
mode=040777 uid=0 gid=0
parent mode=040777 uid=0 gid=0
sys_executable: 'C:\Users\Guy\AppData\Roaming\Dropbox\bin\Dropbox.exe'
real_path='C:\Users\Guy\AppData\Roaming\Dropbox\bin\Dropbox.exe'
mode=0100777 uid=0 gid=0
parent mode=040777 uid=0 gid=0
trace.file: 'C:\Users\Guy\AppData\Roaming\Dropbox\bin\Dropbox.exe\dropbox\client\ui\common\boot_error.pyc'
real_path='C:\Users\Guy\AppData\Roaming\Dropbox\bin\Dropbox.exe\dropbox\client\ui\common\boot_error.pyc'
not found
parent not found
TMP: C:\Users\Guy\AppData\Local\Temp
TEMP: C:\Users\Guy\AppData\Local\Temp
tempdir: u'c:\users\guy\appdata\local\temp'
real_path=u'c:\users\guy\appdata\local\temp'
mode=040777 uid=0 gid=0
parent mode=040777 uid=0 gid=0
Traceback (most recent call last):
File "dropbox\client\authenticate.pyc", line 1285, in authentication_thread
File "dropbox\client\authenticate.pyc", line 404, in finish_dropbox_boot
File "dropbox\sync_engine\sync_engine.pyc", line 484, in mount_dropbox_folder
File "dropbox\sync_engine\block_cache.pyc", line 35, in init
File "dropbox\sync_engine\block_cache.pyc", line 41, in compute_max_size
File "dropbox\sync_engine_file_system\windows.pyc", line 182, in wrapped
File "contextlib.pyc", line 35, in __exit
_
File "dropbox\sync_engine_file_system\util.pyc", line 94, in convert_error
File "dropbox\sync_engine_file_system\windows.pyc", line 182, in wrapped
File "dropbox\sync_engine_file_system\windows.pyc", line 442, in get_disk_space_info
FSInvalidArgumentError: [Errno 22] The file or directory is corrupted and unreadable.

Re: Can't start dropbox because of permission error.

John D.97 New member | Level 1
New member | Level 1

I've just installed dropbox and got the same error message when I tried to start it.

Re: Can't start dropbox because of permission error.

Dropboxer
Dropboxer

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 on the gear in the Notifications panel

3) Select 'Preferences'

4) Click on the 'Account' tab

5) Hold down the 'Option' 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.

View solution in original post

Re: Can't start dropbox because of permission error.

John D.97 New member | Level 1
New member | Level 1

Sorry Kaz, I don't understand you answer. I can't open the Dropbox application so I can't get past step 1 in your instructions.

Re: Can't start dropbox because of permission error.

Dropboxer
Dropboxer

@ 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".

Re: Can't start dropbox because of permission error.

Kathy T.5 New member | Level 1
New 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:

https://help.dropbox.com/desktop-web/uninstall-dropbox

Re: Can't start dropbox because of permission error.

John D.97 New member | Level 1
New member | Level 1

Thanks Kathy - I tried that but it couldn't find the folder. Thanks Kaz, your solution worked fine.

Re: Couldn't start Dropbox This is usually because of a permissions error. Storing your home folder on a network share can also cause an error.

Dropboxer
Dropboxer

Hi Guy

Could you please follow these steps:

On your Dropbox client (desktop version):

  1. Click on the Dropbox icon and then the "gear" at the bottom right
  2. Open the Preferences pane
  3. Click the Account tab.
  4. Hold down the Option key and the "Unlink This Computer" button will become a "Fix Permissions" button.
  5. Click the Fix Permissions button and quit Dropbox.
  6. Restart your computer.

This should fix the problem. If you're still having problems, please let me know.




Ed G
Community Manager @ Dropbox
https://dropbox.com/support


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Re: Couldn't start Dropbox This is usually because of a permissions error. Storing your home folder on a network share can also cause an error.

Peter K.19 New member | Level 1
New 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".

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