<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi Stefan,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Sorry for the trouble.  It's always a little tricky to diagnose a problem of "it doesn't work", but here are a couple of things to try:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">If you can open the Anaconda Prompt (from Start Menu it may be under "Anaconda3 (64-bit) and then "Anaconda Prompt (xraylarch)") where you ran 'larch -m" from, try running</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">    C:>   xas_viewer</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">That is supposed to run, but I suspect that it might print out some error messages.  If I had to guess, some package is not correctly installed.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Second, it might be helpful just to run (from the same prompt):</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">    C:> conda update --all</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">and see if that installs some updates or spins forever.  If it finishes, then try running "xas_viewer" again.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Third, you could just try reinstalling from scratch.  That might be "easiest", but if you have the patience to try the other approaches above it would help identify what the problem is.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">--Matt</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 15, 2021 at 7:59 AM Mangold, Stefan (IPS) <<a href="mailto:stefan.mangold@kit.edu">stefan.mangold@kit.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">



<div style="overflow-wrap: break-word;">
Thanks <span style="font-family:arial,helvetica,sans-serif">Matt,</span>
<div><br>
</div>
<div>installation worked. But still have the problem, that I can’t start XAS Viewer. I executed also larch -m (no error message).</div>
<div><br>
</div>
<div>regards</div>
<div><br>
</div>
<div>Stefan</div>
<div><br>
</div>
<div>
<div>
<blockquote type="cite">
<div>Am 13.03.2021 um 16:35 schrieb Matt Newville <<a href="mailto:newville@cars.uchicago.edu" target="_blank">newville@cars.uchicago.edu</a>>:</div>
<br>
<div>
<div dir="ltr">
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi Stefan, Morgane, All, </div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Yeah, sorry for the trouble with this.   I should admit I've had increasing struggles over the past year or two with maintaining packages for Anaconda Python, running into many painful
 claims of incompatible packages.    Most of the "core scientific python packages" are well-maintained by
<a href="http://Anaconda.com" target="_blank">Anaconda.com</a> -- it's hard to complain about this free distribution and all of the work that goes into it.   But the "non-Anaconda-provided" packages make Larch more complicated, and the xraylarch "conda" package is
 out-of-date.</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">The semi-good news on this front is that almost everything, including Larch, is actually available from the PyPI packaging system and can be installed with "pip".  Anaconda and its "conda"
 package-manager will regularly say to not mix "conda" and "pip", but this mostly applies to cases where C code is going to be compiled on installation, which we don't do.</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">What I'm now doing for building the binary distributions, and what I recommend for updating is:</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">   1. install a basic Anaconda distribution - this can be from the Larch binary installers.</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">   2. install or update the Larch code with  "pip install --upgrade xraylarch". </div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I should probably take another look at adding xraylarch to the large-and-diverse "conda_forge" channel for the "conda" system.    </div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hope that helps, and suggestions on how to handle this better would be most welcome,</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif">--Matt</div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"> <br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Mar 12, 2021 at 10:07 AM Morgane Desmau <<a href="mailto:morgane.desmau@gmail.com" target="_blank">morgane.desmau@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>Hello,</div>
<div><br>
</div>
<div>I already had this issue and it was related to the python version (6/7 months ago with python 3.8, and then it worked with Python 3.7, but I was thinking it was fixed since).</div>
<div><br>
</div>
<div>Best,</div>
<div>Morgane Desmau<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Le ven. 12 mars 2021 à 16:55, Mangold, Stefan (IPS) <<a href="mailto:stefan.mangold@kit.edu" target="_blank">stefan.mangold@kit.edu</a>> a écrit :<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Dear all,<br>
<br>
I tried to reinstall; before I updated and couldn’t open larch anymore <br>
<br>
<br>
conda install -yc GSECARS xraylarch<br>
Collecting package metadata (current_repodata.json): done<br>
Solving environment: failed with initial frozen solve. Retrying with flexible solve.<br>
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.<br>
Collecting package metadata (repodata.json): done<br>
Solving environment: failed with initial frozen solve. Retrying with flexible solve.<br>
Solving environment: / <br>
Found conflicts! Looking for incompatible packages.<br>
This can take several minutes.  Press CTRL-C to abort.<br>
failed                                                                                                                                                                                                                           <br>
<br>
UnsatisfiableError: The following specifications were found to be incompatible with each other:<br>
<br>
<br>
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</div>
<br clear="all">
<div><br>
</div>
-- <br>
<div dir="ltr">
<div dir="ltr">--Matt Newville <newville at <a href="http://cars.uchicago.edu/" target="_blank">
cars.uchicago.edu</a>> 630-327-7411<br>
</div>
</div>
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</blockquote>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr">--Matt Newville <newville at <a href="http://cars.uchicago.edu" target="_blank">cars.uchicago.edu</a>> 630-327-7411<br></div></div>