<div dir="ltr">SInce it says that it can't generate an extent from the shapes you might look at your data source (shapes). And give us a little more detail, like what is your data source - shapefile, postgres, etc.? Is it valid? What does your CGI request look like?</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Dec 12, 2021 at 8:38 AM Carlos Neves (LREC) <<a href="mailto:cneves@lrec.pt">cneves@lrec.pt</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>
    <p>Hi List,</p>
    <p>Sometimes and unexpectedly <span style="color:rgb(0,0,0);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:24px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;background-color:rgb(245,245,245);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"></span>,
      Mapserver returns an error message "<span style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">mapserv():
        Web application error. No way to generate a valid map extent
        from selected shapes", but when I submit the same CGI again it
        works without any error.</span></p>
    <p><span>Any idea to avoid this?</span></p>
    <p><span>Carlos<br>
      </span></p>
  </div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr">Richard W. Greenwood<br><a href="http://www.greenwoodmap.com" target="_blank">www.greenwoodmap.com</a></div></div>