On Mon, Aug 26, 2013 at 12:40 AM, Andrej N. Gritsenko <andrej@rep.kiev.ua> wrote:

>I found out that sometimes I have the warning:

>$ lxpanel --profile Lubuntu
>** (process:4483): WARNING **: removed previous socket file

There were some bugs in menu-cache that leaded to menu-cached crash and
also libmenu-cache1 package in Ubuntu conflicts with libmenu-cache2 and
libmenu-cache3 despite the fact they are co-installable, that's Ubuntu
packaging bug which is fixed only in lubuntu-dev PPA. Update to version
0.5.0 and make sure both libfm and lxpanel use the same libmenu-cache,
please, and those problems should vanish.

I confirm that after adding lubuntu-dev PPA the problem disappeared, thank you very much.