[Therion] MacOS install issues: version conflict for package "Tk": have 9.0.3, need 8.1.1

[Thomas Holder]

Hi Rodrigo,

Try to revert the BWidget Solution/Workaround (remove the symlink) and
instead install bwidget with brew. I have tcl-tk=9.0.3 and
bwidget=1.10.1 installed with brew and that works with xtherion.

Cheers,
Thomas

On Tue, Jan 13, 2026 at 9:18 PM Rodrigo Severo via Therion
<therion at speleo.sk> wrote:
>
> Hi,
>
>
> I am trying to help a friend install Therion in a Mac. After following the instructions available at https://github.com/ladislavb/homebrew-therion, when trying to run xtherion as instructed we are getting the following error:
>
> % xtherion
> Error in startup script: version conflict for package "Tk": have 9.0.3, need 8.1.1
>     while executing
> "package require Tk 8.1.1"
>     ("package ifneeded BWidget 1.9.1" script)
>     invoked from within
> "package require BWidget"
>     (file "/opt/homebrew/bin/xtherion" line 12915)
>
> I have already applied the TK version and BWidget fixes mentioned at https://github.com/ladislavb/homebrew-therion but the issue remains.
>
> Any ideas?
>
>
> Regards,
>
> Rodrigo
>
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