<div class="markdown_content"><p>Technically You are right, "just" backend crashes, but practically, You loose Your session and have to restore from backup. So that I vote for that restart feature and I hope to see it soon.</p>
<hr/>
<p><strong> <a class="alink" href="http://sourceforge.net/p/rkward/bugs/138/">[bugs:#138]</a> NEEDINFO: Rkward crashes when calculating NMDS</strong></p>
<p><strong>Status:</strong> open<br/>
<strong>Group:</strong> CRASH<br/>
<strong>Created:</strong> Tue May 19, 2015 02:43 PM UTC by Vojtěch Zeisek<br/>
<strong>Last Updated:</strong> Tue Jan 05, 2016 01:58 PM UTC<br/>
<strong>Owner:</strong> nobody</p>
<p>---Problem description---<br/>
I encountered the error message quoted below. Additionally, I saw the following symptoms:</p>
<h3 id="please-fill-in-if-applicable">Please fill in (if applicable)</h3>
<p>What - in detail - did you do directly before you encountered this problem?</p>
<p>library(vegan)<br/>
metab.pos.root1.concat.mrbayes.nmds <- metaMDS(comm=metab.pos.root1.concat.mrbayes, distance="manhattan", k=2, trymax=10000, engine="monoMDS", autotransform=FALSE, noshare=FALSE, stepacross=FALSE, wascores=FALSE, expand=FALSE, plot=TRUE)</p>
<h1 id="metabposroot1concatmrbayes-has-over-14000-columns-and-18-rows">metab.pos.root1.concat.mrbayes has over 14000 columns and 18 rows</h1>
<p>When you try to repeat the above, does the problem occur again (no, sometimes, always)?<br/>
Always.</p>
<p>If applicable: When doing the same thing in an R session outside of RKWard, do you see the same problem?<br/>
RStudio and R console do not produce any output, they just hang.</p>
<p>Do you have any further information that might help us to track this problem down? In particular, if applicable, can you provide sample data and sample R code to reproduce this problem?<br/>
No</p>
<p>RKWard is available in many different packagings, and sometimes problems are specific to one method of installation. How did you install RKWard (which file(s) did you download)?<br/>
<a href="https://build.opensuse.org/package/show?project=devel%3Alanguages%3AR%3Areleased&package=rkward" rel="nofollow">https://build.opensuse.org/package/show?project=devel%3Alanguages%3AR%3Areleased&package=rkward</a></p>
<p>---Error Message---<br/>
Message code: r_engine_has_died<br/>
Connection closed unexpectedly. Last error was: QLocalSocket: Remote closed<br/>
The R backend will be shut down immediately. This means, you can not use any more functions that rely on it. I.e. you can do hardly anything at all, not even save the workspace (but if you're lucky, R already did that). What you can do, however, is save any open command-files, the output, or copy data out of open data editors. Quit RKWard after that. Sorry!</p>
<p>---Session Info---<br/>
RKWard version: 0.6.3<br/>
KDE version (runtime): 4.14.6<br/>
KDE version (compile time): 4.14.2<br/>
Qt build key: x86_64 linux g++-4 full-config<br/>
Local KDE directory: /home/vojta/.kde4/<br/>
RKWard storage directory: /home/vojta/.rkward/<br/>
Backend version (as known to the frontend): 3.2.0</p>
<p>Debug message file (this may contain relevant diagnostic output in case of trouble):<br/>
/tmp/rkward.frontend.vrA671<br/>
- backend not available or rk.sessionInfo() canceled -<br/>
$ cat /tmp/rkward.frontend.vrA671<br/>
Object::connect: No such signal KateBuffer::respellCheckBlock(KateDocument<em>,int,int)<br/>
Assert 'false' failed at /home/abuild/rpmbuild/BUILD/rkward-0.6.3/rkward/misc/rkstandardicons.cpp - function iconForWindow line 171<br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.binary.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.binary.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.addin.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slideshow.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slideshow.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.sheet.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.presentation.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.presentation.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.template.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.template.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.template.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-excel.template.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.template.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.template.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.document.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-word.document.macroEnabled.12" <br/>
rkward(671) KMimeTypeRepository::parents: "/usr/share/mime/subclasses" refers to unknown mimetype "application/vnd.ms-powerpoint.slide.macroEnabled.12" <br/>
rkward(671)/kparts KParts::StatusBarExtension::removeStatusBarItem: StatusBarExtension::removeStatusBarItem. Widget not found : QObject(0x0)<br/>
rkward(671) KDirWatch::removeFile: doesn't know "" <br/>
Object::connect: No such signal KateBuffer::respellCheckBlock(KateDocument</em>,int,int)<br/>
Calling appendChild() on a null node does nothing.<br/>
Calling appendChild() on a null node does nothing.<br/>
Object::connect: No such signal KateBuffer::respellCheckBlock(KateDocument<em>,int,int)<br/>
Calling appendChild() on a null node does nothing.<br/>
Calling appendChild() on a null node does nothing.<br/>
Object::connect: No such signal KateBuffer::respellCheckBlock(KateDocument</em>,int,int)<br/>
Calling appendChild() on a null node does nothing.<br/>
Calling appendChild() on a null node does nothing.<br/>
QPainter::begin: Widget painting can only begin as a result of a paintEvent<br/>
QPainter::translate: Painter not active<br/>
QPainter::setClipRect: Painter not active<br/>
QPainter::font: Painter not active<br/>
QPainter::setFont: Painter not active<br/>
QPainter::setPen: Painter not active<br/>
Assert 'devices.contains (devnum)' failed at /home/abuild/rpmbuild/BUILD/rkward-0.6.3/rkward/rbackend/rkwarddevice/rkgraphicsdevice.cpp - function closeDevice line 119<br/>
QCoreApplication::postEvent: Unexpected null receiver<br/>
rkward(671)/kparts KParts::StatusBarExtension::removeStatusBarItem: StatusBarExtension::removeStatusBarItem. Widget not found : QObject(0x0)<br/>
QProcess: Destroyed while process is still running.</p>
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