how to select the culprit object?

I’m getting an error using Yaf(a)ray to render the Blender model. The end of the console message is pasted below. My questions is how to identify the culprit curve that cannot be converted to mesh?
Thanks for help/suggestions!

INFO: Exporter: Creatind Object: “li_PROPERTY_BOUND.003”
INFO: Exporter: Creatind Object: “GP_Layer”
Traceback (most recent call last):
File “C:\Users\gradinarul\AppData\Roaming\Blender Foundation\Blender.blender
scripts\”, line 2624, in button_event
File “C:\Program Files (x86)\YafaRay\python\”, line 887, in render
File “C:\Program Files (x86)\YafaRay\python\”, line 298, in exportObjects
self.yObject.writeObject(self.yi, o)
File “C:\Program Files (x86)\YafaRay\python\”, line 213, in write
self.writeMeshObject(yi, ID, 0, obj, matrix, ymaterial)
File “C:\Program Files (x86)\YafaRay\python\”, line 268, in write
mesh.getFromObject(object, cage, 1)
RuntimeError: cant convert curve to mesh. Does the curve have any segments?

It depends how many curves you have. If you have 2 curves, delete one, render, if no error the probability is high that the curve you deleted is the problem one. If you have 1000 curves, using this method may get mind numbingly tedious.

THAT was the question, when the model is big, is there a way to filter objects? With one two objects in the model, there is no problem, I’m interested in large models, where a lot of objects are there.
I use the Layer Manager by 4mm, and is a great help, however probably there are some other methods to “select by” that I’m not aware of it.

If you read through the console output, it is most likely the last object mentioned.