Failed to load image '(Unknown image format)'

[Maik Qualmann]

Pretty sure the digiKam plugins will not be found, including the image loader 
plugins. They may not have been installed into the Qt plugin search path. We 
have an environment variable "DK_PLUGIN_PATH" to set a path if digiKam was not 
installed system-compliant.

Maik

Am Sonntag, 3. Dezember 2023, 17:19:59 CET schrieb Dougie Nisbet:
> For 'reasons' I did a clean install of Debian Bookworm and then copied
> my dK database from backup. I then compiled digiKam 8.2.0 from source.
> All looks good except when double-clicking on a thumbnail to get a
> preview I'm getting the message: 'Failed to load image'.
> 
> I've checked the image and it is on disk and all ok. I can view it with,
> e.g. geeqie.
> 
> This is happening with all images.
> 
> With logging turned on I can see the following message in the log:
> 
> digikam.general: Try to get preview from
> "/store/media/images/2023/11/30/athome - loaf32  -- Thu 30Nov2023
> 070408.jpg"
> digikam.general: Preview quality:  2
> digikam.dimg: "/store/media/images/2023/11/30/athome - loaf32  -- Thu
> 30Nov2023 070408.jpg" : Unknown image format !!!
> digikam.general: Cannot extract preview for
> "/store/media/images/2023/11/30/athome - loaf32  -- Thu 30Nov2023
> 070408.jpg"
> digikam.general: Stacked View Mode :  1
> 
> I've tried running the Appimage and it's fine, which makes me think
> perhaps I missed a dependency compiling it from source?
> 
> Dougie