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

[Rodrigo Severo]

Hi Thomas,


Thanks for the tip. It worked.



Regards,

Rodrigo




On Tuesday, January 13th, 2026 at 6:30 PM, Thomas Holder <thomas at thomas-holder.de> wrote:

> 
> 
> 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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