rviz Failing: Symbol Lookup Error
I had rviz running fine under Hydro a few days ago but something has gone wrong to cause the following error. What is this and how do I fix it?
user@computer$ rosrun rviz rviz
QGtkStyle was unable to detect the current GTK+ theme.
[ INFO] [1390871921.858315604]: rviz version 1.10.10
[ INFO] [1390871921.858466802]: compiled against OGRE version 1.7.4 (Cthugha)
/opt/ros/hydro/lib/rviz/rviz: symbol lookup error: /opt/ros/hydro/lib/libroscpp.so: undefined symbol: _ZN3ros6HeaderC1Ev