gEDA-user: New user to PCB - what does this error mean?

[Susan Mackay <susanmackay@xxxxxxxxxxxxxxx>]

I'm new to PCB and I'm trying to create my first board after following  
the tutorials.

What I want is a single copper layer (the component side as everything  
is SMD) so I have removed all layers except 'component', 'silk' and  
'rat lines'.

I have imported my devices from the gschem file (via gsch2pcb etc) but  
I have not imported the netlist because it includes all of the ground  
connections which I want to have replaced by a ground plane, and also  
when I do import the net list and select the 'optimise rats nest'  
command, the process goes to 100% o f CPU and doesn't come back (at  
least it was still working after I left if overnight - for a circuit  
with 2 IC's, 2 transistors, 8 resistors and 7 capacitors, this seems a  
little excessive!)). Therefore I'm trying to add in connections  
manually.

I have arranged the devices in approximately the locations I want them  
and I switched to the 'rat lines' layer. I then selected the 'Line'  
tool. However when I click on a pad I get one of the processors run up  
to nearly 100% and the following message appears on the terminal  
emulator output:

(pcb:32709): Gtk-CRITICAL **: gtk_tree_model_foreach: assertion  
`GTK_IS_TREE_MODEL (model)' failed

Is this something that I'm doing wrong?

Is this a known bug and, if so, what is the workaround?

What I would ideally like to do is to use a technique I saw on the  
Internet that allowed one to draw a rectangle around the entire layout  
and it would automatically leave a gap around all pads, with the use  
of the 'thrm' tool to connect the appropriate pads to the ground  
plane. Unfortunately, the rectangle seems to cover all pads, leaving  
no gaps at all. Therefore I thought I'd try adding in the lines first  
which is when I ran into the above error.

As the error occurred on my 3rd failed attempt to lay out what I think  
of as a very simple circuit, I obviously need help.

Thanks

Susan



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