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    <p>Ximo,</p>
    <p>  I ran into this too; it seems that you have to open the
      Trnsys16 project in Trnsys17, save it, then open the Trnsys17
      project in Trnsys18. If you do not have access to v17 please send
      me the v16 project and I can return one for v18.</p>
    <p>kind regards,</p>
    <p> David</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 12/03/2019 06:16, Ximo Masip Sanchis
      via TRNSYS-users wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:05B5BE57A4362C428F4B6BCF292B210C53621CC8@AGENDA1.upvnet.upv.es">
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        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Hi,<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">I
            got the same problem described by Knut Erik Enerstvedt.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Do
            you know how to fix the problem of: “Failed to open
            document”?<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Thank
            you,<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Ximo<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">PD.:
            Here is the previous message from Knut Erik:<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><a
href="http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/2019-February/030762.html"
            moz-do-not-send="true"><span lang="EN-US">http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/2019-February/030762.html</span></a><span
            lang="EN-US"><o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Hello,<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">I
            have upgraded from TRNSYS 16 to 18, and hope to reuse as
            much as possible<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">of
            my old TRNSYS 16 projects. I am able to open T16 projects in
            T18, but<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">when
            I save and try to open again in T18, I get the error "Failed
            to open<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">document".
            I have also tried to copy everything from the old project
            into a<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">new
            T18 project, but then I get the error "Encountered an
            improper<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">argument".
            Is there a solution to this problem, or do I have to rebuild<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">everything
            from scratch?<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Best
            regards,<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-size:10.0pt;font-family:"Courier
            New";color:black;mso-fareast-language:ES" lang="EN-US">Knut
            Erik Enerstvedt<o:p></o:p></span></p>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
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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