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    <p>Issmail,</p>
    <p>  I have run into this kind of issue quite a few times. The first
      important thing to note is that if you have a wall that is
      adjacent between two zones you must draw surfaces identically in
      both zones and either set them manually to ADJACENT or do an
      automatic surface matching. The wall verticies must be
      mathematically identical in both zones and the surfaces must have
      opposite outward pointing normal vectors. You can tell the outward
      facing surface in each zone if it is yellow colored. If it is more
      white than yellow that means that the wall faces inwards instead
      of outwards.</p>
    <p>  If you aren't able to resolve the conflict yourself then you
      will need to send the *.idf to your distributor to see if they can
      help you find the cause of the problem.</p>
    <p>kind regards,</p>
    <p> David</p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 04/11/2017 02:57, Issmail OUHALLOU
      via TRNSYS-users wrote:<br>
    </div>
    <blockquote
cite="mid:CAA779b0q+OQA3RhcYwk8S3zPdQGTODfJWdNXfs=HoEU_bXR_EA@mail.gmail.com"
      type="cite">
      <div dir="ltr"><img moz-do-not-send="true" class="mailtrack-img"
          style="float:right;" alt=""
src="https://mailtrack.io/trace/mail/05462749e21f09340726aad563a6319b4f9a352c.png?u=633613"
          height="0" width="0">
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)">Dear
          Trnsys3d users,</div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><br>
        </div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)">I have
          again this uncommon error in Trnsys3d, which is a bug! I have
          drew my building in Trnsys3d and everething is Ok untill I
          imported it into TRNBuild, it showed me that error "Undefined
          adjacdent wall". When opening the *.b17 file and checking my
          undefined walls, I got this:</div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><img
            src="cid:part2.BD26206C.558B9FE1@tess-inc.com" height="129"
            width="562"><br>
          ​<span style="font-size:12.8px">Would anyone happen to have an
            experience dealing with such a bug in Trnsys3d? How to fix
            it? I'll appreciate it.</span><br>
        </div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><span
            style="font-size:12.8px">Thanks in advance,</span></div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><span
            style="font-size:12.8px"><br>
          </span></div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><span
            style="font-size:12.8px">Best regards,</span></div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><span
            style="font-size:12.8px">Ismail.</span></div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:rgb(0,0,0)"><br>
        </div>
        <div><br>
        </div>
        -- <br>
        <div class="gmail_signature">
          <div dir="ltr">
            <div>
              <div dir="ltr"><i
style="font-size:10.6667px;color:rgb(0,0,0);font-family:arial,sans-serif">Ismail
                  OUHALLOU</i><br>
              </div>
              <div dir="ltr">
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px">Green buildings &
                      Sustainability concultant</span></font></div>
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px"><br>
                    </span></font></div>
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px"><b>TRUSTED ENERGY
                        S.a.r.l</b></span></font></div>
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px">Morocco</span></font></div>
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px">Fax:    +212 522 326
                      440</span></font></div>
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px">Mob:   +212 620 548
                      116</span></font></div>
                <div><font face="Arial, sans-serif" color="#000000"><span
                      style="font-size:10.6667px">Email:  <a
                        moz-do-not-send="true"
                        href="mailto:i.ouhallou@trusted-energy.com"
                        style="background-color:rgb(243,243,243)"
                        target="_blank">i.ouhallou@trusted-energy.com</a></span></font></div>
              </div>
            </div>
          </div>
        </div>
        <br>
        <br>
        <br>
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      <br>
      <pre wrap="">_______________________________________________
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<a class="moz-txt-link-freetext" href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a>
</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>

<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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