System Information
32-bit Windows XP SP3
2.8 Ghz single core Pentium 4
2 GB RAM
Geforce 6200 256MB
Blender Version
Broken: 2.70, Hash: 19e627c
SCA Tree Generator version 0.2.14
Short description of error
Confusing crown group error.
Exact steps for others to reproduce the error
Make a crown group and and move it to a non-visible layer. Try to use the crown group in the Tree Generator add-on toolbar, and it will give a confusing error difficult for end users to understand.
Request using a simple check to see if the crown group is on same layer and telling user "All layers with selected crown group need to be visible" if not.
Thank you for reading.