Comment 8 for bug 717906

Greetings

Inkscape SVG file that we discussed was created from already created files, obtained from Wikimedia Commons (http://commons.wikimedia.org/wiki/Portada). Taking a picture to serve, modificating it, erasing, changing colours, modifying nodes, etc. to obtain the desired image.

I supose the process adds unnecessary layers. But when "trying" to delete layers, the program returns to collapse. I will delete the items that do not fit (objects), but it seems that the layers add weight to the file.

How delete layers that do not serve in my project without deleting those that are necessary for the image? Can you explainme that. And how I can return to work in the file if when I "try" to delete layers Inkscape collapse?