Delete your ~/.config/darktable directory to workaround this problem.

It looks like a bug in darktable database upgrade logic. Which version
of darktable did you have installed previously?


On Wed, 16 Sep 2020 12:12:58 +0100
Graham Moores <[email protected]> wrote:

> I recently upgraded to Mac OS Catalina.
> The version of darktable I had wouldn't allow me to open or access files. I
> tried making a change to the security preferences to allow dt access to all
> files. This didn't help.
> 
> Next, I installed the latest version of dt (3.2.1). Now, I can't get dt to
> run at all. I get two dialogs, but they fail and then dt quits.
> 
> The first dialog says: "We have an updated performance configuration
> logic..." with 'Yes / No buttons. Whether I click Yes or No, I then get a
> second dialog which says "the database schema has to be upgraded for
> .../,config/darktable/library.db do you want to proceed or quit now to do
> ao backup", with buttons 'close darktable' and 'upgrade database'. Again,
> it doesn't matter which button I click, darktable closes.
> 
> I tried double clicking on the executable file, and found the following
> messages in the terminal window that opened:
> (1) - before clicking the 'Yes' button at the first dialog:
> 
> (process:1553): GLib-GObject-CRITICAL **: 18:06:59.009: g_object_set:
> assertion 'G_IS_OBJECT (object)' failed
> 
> (2) after clicking 'Yes':
> 
> [defaults] found a 64-bit system with 8388608 kb ram and 4 cores (0 atom
> based)
> [defaults] setting high quality defaults
> 
> 
> (3) after clicking 'upgrade database':
> 
> [init] can't prepare insertion of used tags into data database
> [init]   table data.tags has no column named icon
> [init] database `library.db' couldn't be upgraded from version 12 to 30.
> aborting
> ERROR : cannot open database
> logout
> Saving session...
> ...copying shared history...
> ...saving history...truncating history files...
> ...completed.
> 
> [Process completed]
> 
> Is there any way a 'simple' GUI user can install dt now and open it on Mac
> OS 10.15?
> If there is a way I can rebuild the database (I don't care about any
> presets or old xmp files), perhaps that would help, but I do not have the
> first clue how I would go about that.
> 
> Any help would be appreciated.
> 
> Graham
> 
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