https://www.ejabberd.im/node/17813 en https://www.ejabberd.im/node/17813#comment-63883 <p>Probably this is because mod_muc_admin.erl is compiled with a mod_muc_room.hrl that is different from the one used to compile ejabberd 2.1.11.</p> <p>Two solutions:<br /> - easy: download mod_muc_room.hrl from ejabberd 2.1.11 sources, copy it to overwrite the one you used to compile mod_muc_admin.erl (probably it's located in ejabberd-dev/include/). Then compile mod_muc_admin.erl again, copy, restart ejabberd and should work.<br /> - harder: update ejabberd to the latest one (2.1.13)</p> Mon, 07 Apr 2014 15:29:02 +0000 mfoss comment 63883 at https://www.ejabberd.im