<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Kristian,<br><br>This error message is telling you that you need to set removeRigidBodyMomentum to false:<br><br>removeRigidBodyMomentum False<br><br>.. sometime before you issue the constraint command. <br><br>The error message is perhaps a bit deceptive. You did not explicitly set removeRigidBodyMomentum True, that is simply the default and the error message does not discriminate between those two cases.<br><br><br>I don't recommend compiling from source, it's a bit tedious and usually I do it when the user and I are in the same room or logged into the same computer. I just put up RNABuilder 2.1 binaries for Linux a minute ago, and could do the same for Snow Leopard, if you are using those operating systems. Windows will probably have to wait until January when I go back to visit Stanford.<br><br><br>What are you using RNABuilder for, if it's not confidential? I will be happy to provide advice. Also, I'm now based in Europe and would be happy to think about setting up a workshop if you know a few people that would participate.<br><br>Sam <br><br><br><br><br>On Nov 3, 2010, at 11:58 AM, Kristian Rother wrote:<br><br><blockquote type="cite">You have been contacted by a member of <a href="http://Simtk.org/">Simtk.org</a>.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">From: Kristian Rother<br></blockquote><blockquote type="cite">Email: <a href="mailto:krother@rubor.de">krother@rubor.de</a><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">The e-mail was sent via the "contact" link on <a href="http://Simtk.org/">Simtk.org</a> by the above member. It is not screened by <a href="http://Simtk.org/">Simtk.org</a> or its staff.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">*** MESSAGE BEGINS ***<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Dear Sam,<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I'm having trouble using the Weld constraint in RNABuilder. It says:<br></blockquote><blockquote type="cite">SimTK Exception thrown at Repel.cpp:286:<br></blockquote><blockquote type="cite">Error detected by SimTK method [Repel.cpp]: At this time it is not possible to apply a constraint AND turn on removeRigidBodyMomentum. Please remove one of the two.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">- in the input script, there is nothing else than the starting structure, the reporting interval, and the Weld constraint set.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Then, I tried to upgrade RNABuilder by compiling the code from SVN with SimTK Version: 2.1.0. I get a compilation error: <br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">In file included from /usr/local/SimTK/include/SimTKcommon/basics.h:52,<br></blockquote><blockquote type="cite"> from /usr/local/SimTK/include/SimTKcommon.h:40,<br></blockquote><blockquote type="cite"> from /usr/local/SimTK/include/SimTKsimbody.h:70,<br></blockquote><blockquote type="cite"> from /usr/local/SimTK/include/SimTKmolmodel.h:86,<br></blockquote><blockquote type="cite"> from /home/krother/rnabuilder/repo/rnatoolbox/trunk/include/Repel.h:38,<br></blockquote><blockquote type="cite"> from Repel.cpp:31:<br></blockquote><blockquote type="cite">/usr/local/SimTK/include/SimTKcommon/internal/String.h:296: error: explicit template specialization cannot have a storage class<br></blockquote><blockquote type="cite">/usr/local/SimTK/include/SimTKcommon/internal/String.h:301: error: explicit template specialization cannot have a storage class<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">This might be related to versions - do you have any recommendation?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Best Regards,<br></blockquote><blockquote type="cite"> Kristian<br></blockquote><blockquote type="cite"><br></blockquote></body></html>