Hi i developed a site column, custom content type and a list definition. I set the value for this column and started crawling but i don't find these properties in search schema. If i add this column manually in a library and start crawling, these properties are showed. What 's the difference?
I think it should work as you described - the following steps are needed, maybe you can try again:
Btw, I would not recommend you the automatically approach, you loose a lot IMHO. The managed property benefits a lot when you merge several crawled properties into one managed property.