So it looks like there&#39;s an error in the error message printing when plugins throw an exception:  instead of printing the error message, I guess this weird TypeError:<br><br>....<br>&gt;&gt;&gt; Done Configuring Sun Grid Engine<br>
&gt;&gt;&gt; Running plugin govlovePlugin<br>---------------------------------------------------------------------------<br>TypeError                                 Traceback (most recent call last)<br><br>/Users/danielyamins/StarCluster/bin/starcluster in &lt;module&gt;()<br>
      5 del require<br>      6 __file__ = &#39;/Users/danielyamins/StarCluster/bin/starcluster&#39;<br>----&gt; 7 execfile(__file__)<br>      8 <br>      9 <br><br>/Users/danielyamins/StarCluster/bin/starcluster in &lt;module&gt;()<br>
      4 if __name__ == &#39;__main__&#39;:<br>      5     try:<br>----&gt; 6         cli.main()<br>      7     except KeyboardInterrupt:<br>      8         print &quot;Interrupted, exiting.&quot;<br><br>/Users/danielyamins/StarCluster/starcluster/cli.pyc in main()<br>
    750         sys.exit(0)<br>    751     try:<br>--&gt; 752         sc.execute(args)<br>    753     except exception.BaseException,e:<br>    754         log.error(e.msg)<br><br>/Users/danielyamins/StarCluster/starcluster/cli.pyc in execute(self, args)<br>
    161             <a href="http://log.info">log.info</a>(&#39;Cluster settings are valid&#39;)<br>    162             if not self.opts.validate_only:<br>--&gt; 163                 scluster.start(create=not self.opts.no_create)<br>
    164                 if self.opts.login_master:<br>    165                        cluster.ssh_to_master(tag, self.cfg)<br><br>/Users/danielyamins/StarCluster/starcluster/utils.pyc in wrapper(*arg, **kargs)<br>     22         &quot;&quot;&quot;Raw timing function &quot;&quot;&quot;<br>
     23         time1 = time.time()<br>---&gt; 24         res = func(*arg, **kargs)<br>     25         time2 = time.time()<br>     26         <a href="http://log.info">log.info</a>(&#39;%s took %0.3f mins&#39; % (func.func_name, (time2-time1)/60.0))<br>
<br>/Users/danielyamins/StarCluster/starcluster/cluster.pyc in start(self, create)<br>    405                               self.cluster_shell, self.volumes)<br>    406             except Exception, e:<br>--&gt; 407                 log.error(&quot;Error occured while running plugin &#39;%s&#39;:&quot; % plugin)<br>
    408                 print e<br>    409 <br><br>TypeError: not all arguments converted during string formatting<br><br>