p5.34-ifeffit @1.2.13_2+gcc14 conflicts with demeter

[luisachavarria2 (Luisa Chavarria)]

I have a macOS Sequoia 15.5 and I want to install demeter. I followed the instructions given here: ​https://bruceravel.github.io/demeter/documents/SinglePage/macinstallation.html

I'm receiving the following error:

Error: Failed to activate demeter: The following ports have active files that conflict with demeter's:
p5.34-ifeffit @1.2.13_2+gcc14
  /opt/local/lib/perl5/vendor_perl/5.34/darwin-thread-multi-2level/Ifeffit.pm
Image error: Conflicting file(s) present. Please deactivate the conflicting port(s) first, or use 'port -f activate demeter' to force the activation.
    while executing
"throw registry::image-error $msg"
    ("foreach" body line 35)
    invoked from within
"foreach file $imagefiles {
                incr progress_step
                _progress update $progress_step $progress_total_steps
                se..."
    invoked from within
"registry::read {
            foreach file $imagefiles {
                incr progress_step
                _progress update $progress_step $progress_t..."

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #71110.