> On Jul 12, 2023, at 16:16, Tomer Altman <m...@tomeraltman.net> wrote:
>
> Hi everyone,
>
> Due to filesystem errors, I had to reinstall MacOS on my 2015 Macbook Air
> (current OS version: Monterey 12.6.7). After doing so, and restoring my files
> from a TimeMachine backup using Migration Assistant, I started getting this
> error when trying to open my accounting file:
>
> "No suitable backend was found for <FILE>."
>
> (where "<FILE>" is a stand-in for the actual file name)
>
> I was at the time using a version of GnuCash from December 2022. I then
> reinstalled using the installer available from gnucash.org (current version:
> "5.3+(2023-06-26)" ). Unfortunately, the error persists.
>
> Looking at this error message in the mailing list archives, it seems like
> this has something to do with using the SQLite back-end. I looked at the
> 'environment' text file, and it is implementing already the environment
> variable recommended as a fix:
>
> GNC_DBD_DIR={SYS_LIB}/dbd
>
> It seems like my install is still unable to find the libraries that it needs,
> though.
>
> It's unclear to me how to diagnose which version of the back-end my file is
> using, since I cannot open it. Using 'file' and 'head' shows that it is not
> XML, and I am unable to decompress the file using Gzip. I'm also unable to
> open it using the sqlite3 command line tool.
>
> So, two questions:
>
> 1. What's the correct way to verify the back-end type using something other
> than GnuCash itself?
>
> 2. What is wrong with my fresh install that is preventing me from opening up
> the file?
>
> Thanks in advance for any and all advice and assistance!
If it's a SQLite file you can open it with sqlite3, provided by macOS. Just
open Terminal and run
sqlite3 /path/to/my/gnucash/file
You can use the `.tables` command to list the tables and `.schema <tablename>`
to show the structure and compare it with https://wiki.gnucash.org/wiki/SQL.
99% of the time when users report this problem it's because they're trying to
open a log file or a .gcm file instead of their actual book.
Regards,
John Ralls
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