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<p>Hi, <br>
</p>
<p><br>
</p>
<p>this error most likely happens, when the path you try to create
the file in doesn't exist. Please try creating the output folder
and then running the program again. <br>
</p>
<p><br>
</p>
<p>Regards,</p>
<p>Gregor<br>
</p>
<br>
<div class="moz-cite-prefix">Am 12.02.2018 um 03:29 schrieb
ztdepyahoo:<br>
</div>
<blockquote type="cite"
cite="mid:0F3677C6-E051-445F-B4C4-1AE6C00A1EEA@gmail.com">
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<div><span>Thank you , i have compiled the code in dune-grid
how to . But it gives me the error about "output error"</span></div>
<div><span>
<div><br>
</div>
<div>"<span style="line-height: 1.6;">bash-4.3$
./finitevolume</span></div>
<div>YaspGridParameterBlock: Parameter 'overlap' not
specified, defaulting to '0'.</div>
<div>Filename: concentration-00000.vtu could not be opened</div>
<div>ERROR: basic_ios::clear: iostream error"</div>
<div><br>
</div>
<div>I also setup a dune project as shown in attachment.
It can be sucessfully runed without the output call. If
i add "vtkwrite", it also give the error.</div>
<div> </div>
<div><br>
</div>
<div><br>
</div>
</span></div>
<div><span><br>
</span></div>
<div><br>
</div>
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<div
style="font-size:12px;line-height:1.5;word-break:break-all;margin-left:10px;margin-right:10px">On
<span class="mail-date">2/11/2018 18:40</span>，<a
class="mail-to"
style="text-decoration:none;color:#2a83f2;"
href="mailto:A.S.Dedner@warwick.ac.uk"
moz-do-not-send="true">Dedner,
Andreas<A.S.Dedner@warwick.ac.uk></a> wrote： </div>
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<p style="margin-top:0;margin-bottom:0">Hi.</p>
<p style="margin-top:0;margin-bottom:0">You need to give us
more details. What do you mean with a fvm grid tutorial?
Do you mean how to to construct a grid or how to implement
the fvm on an unstructured gird? What sort of a problem
are you trying to solve? Did you look at the fv example in
dune-grid-howto module?</p>
<p style="margin-top:0;margin-bottom:0"><a
href="https://gitlab.dune-project.org/core/dune-grid-howto"
class="OWAAutoLink" id="LPlnk434055"
previewremoved="true" moz-do-not-send="true">https://gitlab.dune-project.org/core/dune-grid-howto</a></p>
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<table id="LPContainer_15183456428410.4381458584697959"
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rgb(200, 200, 200);" role="presentation" cellspacing="0">
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valign="top">
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style="display: table-cell; text-align:
center;"
href="https://gitlab.dune-project.org/core/dune-grid-howto"
target="_blank" moz-do-not-send="true"><img
style="display: inline-block; max-width:
250px; max-height: 250px; height: 128px;
width: 128px; border-width: 0px;
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id="LPThumbnailImageID_15183456428450.5950065867530151"
src="https://gitlab.dune-project.org/assets/gitlab_logo-7ae504fe4f68fdebb3c2034e36621930cd36ea87924c11ff65dbcb8ed50dca58.png"
moz-do-not-send="true" width="128"
height="128"></a></div>
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<a
id="LPUrlAnchor_15183456428460.6684694237897629"
style="text-decoration: none;"
href="https://gitlab.dune-project.org/core/dune-grid-howto"
target="_blank" moz-do-not-send="true">Core
Modules / dune-grid-howto · GitLab</a></div>
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id="LPMetadata_15183456428480.670013182324451"
style="margin: 10px 0px 16px; color: rgb(102,
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gitlab.dune-project.org</div>
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id="LPDescription_15183456428480.034512859781978045"
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102); font-weight: 400; font-family:
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max-height: 100px; overflow: hidden;">
Howto for the Grid Interface ... Last update;
doc: Loading commit data... grids: Loading
commit data... .gitignore</div>
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<br>
<p style="margin-top:0;margin-bottom:0">Andreas</p>
<p style="margin-top:0;margin-bottom:0">PS: remember always
to reply to all so this is kept on the dune mailing list.<br>
</p>
<br>
<br>
<div style="color: rgb(0, 0, 0);">
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font
style="font-size:11pt" face="Calibri, sans-serif"
color="#000000"><b>From:</b> Dune
<a class="moz-txt-link-rfc2396E" href="mailto:dune-bounces@lists.dune-project.org"><dune-bounces@lists.dune-project.org></a> on behalf
of ztdepyahoo <a class="moz-txt-link-rfc2396E" href="mailto:ztdepyahoo@gmail.com"><ztdepyahoo@gmail.com></a><br>
<b>Sent:</b> 11 February 2018 09:35<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:dune@lists.dune-project.org">dune@lists.dune-project.org</a><br>
<b>Subject:</b> [Dune] dune tutorial for 2d
unstructured fvm grid</font>
<div> </div>
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<div>
<div style="font-family:"微软雅黑";
line-height:1.6">
<div>
<div><span>Dear sir:</span></div>
<div><span> I am looking for a </span>tutorial
for 2d unstructured fvm grid. But i could not find
it in the dune directory.</div>
<div>could you please give me some suggetions.</div>
<div>regards</div>
<div><span><br>
</span></div>
<div><span><br>
</span></div>
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