I have installed VLC Media Player in a fresh install of Lubuntu 14.04 LTS Trusty Tahr, meaning that my installation uses the new Linux kernel 3.13. I have installed VLC Media Player using Synaptic, which uses the official Ubuntu repositories. VLC Media Player works fine, until I attempt to use a skin. I go into VLC Media Player's settings and choose the skin file like I am supposed to. I restart VLC Media Player, but something interesting happens. It shows in the taskbar as if it is opening, but the GUI doesn't load. Then within one second, VLC Media Player disappears from the taskbar, as if it closed itself or crashed. Sometimes when this happens, I get a window that says "Lubuntu 14.04 has experienced an internal error." Then it asks me to send the bug report, which I usually do, but that doesn't have anything to do with VLC Media Player. My question is: What is wrong? Is this a bug? Have I done something wrong? (I don't think so though, because I had no problem using skins in Lubuntu 13.10 Saucy Salamander.) What can I do to fix this?
My wife had a similar problem after upgrading Lubuntu to 14.04 on her laptop. Under Lubuntu 13.10, she had all the skins (available for download from VLC's website) to choose from and changed skins frequently. I have no idea which skin was being used when Lubuntu was upgraded, but interestingly, the VLC icon that flashed on LXPanel for a moment was the "santa-hatted" one from Christmas. Subsequent times my wife tried again to start VLC from a desktop shortcut (5 different shortcuts to playlists we'd set up for her months ago) and got nothing. VLC wouldn't start.
There is probably a faster or easier solution for this/these problem(s); but the following is what I did to fix VLC back up to the way it was for her before:
The skin you copied the path to should be on VLC now (and changeable) and whatever files, playlists and/or shortcuts you had set up before to work with VLC should work again as well.