Skin modifier not work for entire mesh I created spider web using curves. Then I joined all curves using CTRL + j.
Then I wanted to apply "skin modifier" to create mash.
Skin was added only to one line as shown in the picture. How to fix this?
You need to mark all the vertices as root.  So..


Select NurbsPath.005
Get into Edit Mode.
Hit a twice.
Goto the Skin Modifier Panel and hit Mark Root.
While they're still selected, you can hit Ctrl + A to tweak the thickness of the web.