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<p class="MsoNormal"><span style="font-size:12.0pt">Thank you very much for responding. Tcl-Tk exists for MacOS 15, but there is no incr-tk package that can be installed by either homebrew or macports. I learned that itk gets installed with iwidgets using macports.
Even with itk now installed pwgui cannot find itk. <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#F3F3F3"><b><span style="font-size:9.0pt;font-family:Helvetica;color:#001C8C">~~~~</span></b><b><span style="font-size:10.5pt;font-family:Helvetica;color:black">_</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:black">/)</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:#001C8C">~~~</span></b><b><span style="font-size:10.5pt;font-family:Helvetica;color:#942097">_</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:#942097">/)</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:#001C8C">~~~</span></b><b><span style="font-size:10.5pt;font-family:Helvetica;color:#001C8C">_</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:#001C8C">/)~~~</span></b><b><span style="font-size:10.5pt;font-family:Helvetica;color:#B31200">_</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:#B31200">/)</span></b><b><span style="font-size:9.0pt;font-family:Helvetica;color:#001C8C">~~~~</span></b><o:p></o:p></p>
<p class="MsoNormal" style="background:#F3F3F3"><span style="font-size:10.5pt;font-family:Helvetica;color:#535452">Steve Lustig, PhD, FRSC, NAI (he/him/his)</span><o:p></o:p></p>
<p class="MsoNormal" style="background:#F3F3F3"><span style="font-size:10.5pt;font-family:Helvetica;color:#535452">Associate Professor</span><o:p></o:p></p>
<p class="MsoNormal" style="background:#F3F3F3"><span style="font-size:10.5pt;font-family:Helvetica;color:#535452">Department of Chemical Engineering</span><o:p></o:p></p>
<p class="MsoNormal" style="background:#F3F3F3"><span style="font-size:10.5pt;font-family:Helvetica;color:#535452">Northeastern University</span><o:p></o:p></p>
<p class="MsoNormal" style="background:#F3F3F3"><span style="font-size:10.5pt;font-family:Helvetica;color:black"><a href="https://coe.northeastern.edu/people/lustig-steve" title="https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcoe.northeastern.edu%2Fpeople%2Flustig-steve&data=05%7C02%7Cs.lustig%40northeastern.edu%7C1bba3b01c6484c72ca5e08dd560d8219%7Ca8eec281aaa34daeac9b9a398b9215e7%7C0%7C0%7C638761338210758367%7C"><span style="color:#0563C1">https://coe.northeastern.edu/people/lustig-steve</span></a></span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Paolo Giannozzi <paolo.giannozzi@uniud.it><br>
<b>Date: </b>Friday, June 13, 2025 at 12:07</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span style="font-size:12.0pt;color:black">PM<br>
<b>To: </b>Lustig, Steve <s.lustig@northeastern.edu>, Quantum ESPRESSO users Forum <users@lists.quantum-espresso.org><br>
<b>Subject: </b>Re: [QE-users] PWgui-7.0 cannot find itk in qe-7.4.1<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt">[You don't often get email from paolo.giannozzi@uniud.it. Learn why this is important at
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You have to install (on the OS of your machine) a package called<br>
"incr-tk" or something like that. On most computers it is included in<br>
the tcl/tk package, but apparently not on all<br>
<br>
Paolo<br>
<br>
On 6/13/25 04:43, Lustig, Steve via users wrote:<br>
> I am finding that pwgui reports:<br>
><br>
> can't find package itk<br>
><br>
> while executing<br>
><br>
> "package require itk"<br>
><br>
> From a fresh qe-7.4.1 installation as well as in the current quantum<br>
> mobile 24.04.0<br>
><br>
> I’d really like to use PWgui, but Tcl-tk and itk are completely foreign<br>
> to me. How does PWgui work please?<br>
><br>
> *~~~~**_**/)**~~~**_**/)**~~~**_**/)~~~**_**/)**~~~~*<br>
><br>
> Steve Lustig, PhD, FRSC, NAI (he/him/his)<br>
><br>
> Associate Professor<br>
><br>
> Department of Chemical Engineering<br>
><br>
> Northeastern University<br>
><br>
> <a href="https://coe.northeastern.edu/people/lustig-steve">https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcoe.northeastern.edu%2Fpeople%2Flustig-steve&data=05%7C02%7Cs.lustig%40northeastern.edu%7C166ef03720c0406cff6e08ddaa946b58%7Ca8eec281aaa34daeac9b9a398b9215e7%7C0%7C0%7C638854276619775316%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=Qkw2GkS5WEnKYrN4haVHKwA4PSNQoSoTBrxeQDWZLp8%3D&reserved=0</a>
<https://<br>
> coe.northeastern.edu/people/lustig-steve><br>
><br>
><br>
> _______________________________________________________________________________<br>
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--<br>
Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,<br>
Univ. Udine, via delle Scienze 208, 33100 Udine Italy, +39-0432-558216<o:p></o:p></span></p>
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