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Error starting Dropbox.app after installing on Mac OS X

Explorer | Level 4

Mac OS X Server

10.15.4 Beta (19E224g)

Dropbox Error upon launching app:

bn.BUILD_KEY: Dropbox
bn.VERSION: 90.4.307
bn.DROPBOXEXT_VERSION: failed
bn.is_frozen: True
machine_id: 8dbd3c17-4cad-5112-a31f-058163e81e0b
pid: 5210
ppid: 1
uid: 501
user_info: pwd.struct_passwd(pw_name='michael', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='Michael Fishweicher', pw_dir='/Users/michael', pw_shell='/bin/bash')
effective_user_info: pwd.struct_passwd(pw_name='michael', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='Michael Fishweicher', pw_dir='/Users/michael', pw_shell='/bin/bash')
euid: 501
gid: 20
egid: 20
group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'michael'])
effective_group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'michael'])
DYLD_LIBRARY_PATH: None
cwd: '/'
real_path='/'
mode=0o40755 uid=0 gid=80
parent mode=0o40755 uid=0 gid=80
HOME: '/Users/michael'
appdata: '/Users/michael/.dropbox/instance3'
real_path='/Users/michael/.dropbox/instance3'
mode=0o40700 uid=501 gid=20
parent mode=0o40700 uid=501 gid=20
dropbox_path: '/Volumes/FishVault/Dropbox'
real_path='/Volumes/FishVault/Dropbox'
mode=0o40777 uid=0 gid=0
parent mode=0o40777 uid=0 gid=0
sys_executable: '/Applications/Dropbox.app/Contents/MacOS/Dropbox'
real_path='/Applications/Dropbox.app/Contents/MacOS/Dropbox'
mode=0o100755 uid=501 gid=20
parent mode=0o40755 uid=501 gid=20
trace.__file__: '/Applications/Dropbox.app/Contents/Resources/python-packages.zip/dropbox/client/ui/common/boot_error.pyc'
real_path='/Applications/Dropbox.app/Contents/Resources/python-packages.zip/dropbox/client/ui/common/boot_error.pyc'
not found
parent not found
tempdir: '/var/folders/sd/n4htdgb101qdfpd9pbgqy5r00000gn/T'
real_path='/private/var/folders/sd/n4htdgb101qdfpd9pbgqy5r00000gn/T'
mode=0o40700 uid=501 gid=20
parent mode=0o40755 uid=501 gid=20
Traceback (most recent call last):
File "dropbox/client/main.pyc", line 826, in wrapper
File "dropbox/client/main.pyc", line 6918, in finish_dropbox_boot
File "dropbox/client/main.pyc", line 6363, in _init_components_for_account
File "dropbox/client/main.pyc", line 6317, in create_sync_engine
File "dropbox/sync_engine_boundary/factory.pyc", line 348, in make_sync_engine
File "dropbox/sync_engine/nucleus/classic_client/sync_engine.pyc", line 422, in __init__
File "dropbox/sync_engine/nucleus/classic_client/thin_adapter/in_proc.pyc", line 220, in __init__
File "dropbox/sync_engine/nucleus/classic_client/thin_adapter/in_proc.pyc", line 631, in _init_new_engine_locked
File "dropbox/sync_engine/nucleus/thin_client/client.pyc", line 143, in __init__
File "nucleus_python.pyx", line 87, in nucleus_python.NucleusSyncEngine.__cinit__
nucleus_python.SyncEngineError: Initializing engine |>> Initializing filesystem |>> Attempting to create .dropbox.cache |>> mkdirat |>> mkdirat syscall |>> Permission denied

2 Replies 2
Highlighted

Re: Error starting Dropbox.app after installing on Mac OS X

Dropboxer
Dropboxer

Hi @Michael F.75 - thanks for the error log!

To resolve this issue, I am going to provide you with steps to reset the Dropbox application settings without affecting the files in your Dropbox folder.

Just be sure to take note or a screenshot of any Selective Sync settings you may have applied prior to re-installing as you will need to re-apply these settings after this process.

First, please save and quit all programs accessing files in the Dropbox folder, and then follow these instructions:

1) Open your Terminal app (Located at /Applications/Utilities/Terminal)

2) Copy and paste the following line (highlighted below) into the Terminal and press ENTER. PLEASE make sure you copy and paste this command (don't type it by hand), as getting it wrong could cause some harm.

You'll be prompted for your computer's admin password (not your Dropbox password) after entering the first command. Keep in mind that the password field in the terminal will remain blank as you type your password. After you type it, just press ENTER. You'll know that these instructions complete normally once the initial line of text (called prompt) comes up again:

sudo mv ~/.dropbox ~/.Trash/dropbox.old

Please note that once the prompt displays, the instruction completed the requested task. If the command returns an error, or does not respond after an hour, you may want to try restarting your computer and trying this step again.

3) Restart Dropbox from the Application folder, then please sign in and apply any Selective Sync settings you may have had prior to this reset during the sign in process. Your account will take a few moments to reindex the files and sync any pending changes.

If Dropbox still doesn't start then please copy and send me the result from the Terminal commands and any error messages. Alternatively, if it's easier you can also take a screenshot and attach it to your next reply here. 

Thanks a bunch Michael! 



Walter
Community Moderator @ Dropbox
https://dropbox.com/support


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Highlighted

Re: Error starting Dropbox.app after installing on Mac OS X

Super Collaborator | Level 20

Hi @Michael F.75,

You can try something simple - clear the cache. Seems the permissions there got changed somehow and this is the issue. You can stop/quit Dropbox application and run in terminal following command:

sudo rm -rf /Volumes/FishVault/Dropbox/.dropbox.cache /Volumes/FishVault/Dropbox/.dropbox

The 'sudo' will ask for your password (local account password, not Dropbox one). Next, run the Dropbox application again. The cache will be rebuild. Take care, don't change these settings/permissions anymore.

Hope this helps.

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