looks like there are some issues with the model
in 2013 sp2.0 I updated the cut list in solidworks
updated the joints and then attempted to mesh, i got a mesh failure
when i start digging into your model, you have a bunch of bad trims
take al ook at custlist item20(1)
for first steps with your model, you guys might want to remove the trims, just have the tubes come into the nodes and run the analysis if you want to take into account how you've mitered/joined the tubes, you're going to have to go to shells anyways.