Just encountered this on Ubuntu MATE 15.10 for the Raspberry Pi 2. The file /usr/lib/arm-linux-gnueabihf/compiz/libstaticswitcher.so is in compiz-plugins-default and compiz-plugins but the packages are not marked as conflicting.
Consequently Compiz can't be installed, or upgraded, on armhf.
Just encountered this on Ubuntu MATE 15.10 for the Raspberry Pi 2. The file /usr/lib/ arm-linux- gnueabihf/ compiz/ libstaticswitch er.so is in compiz- plugins- default and compiz-plugins but the packages are not marked as conflicting.
Consequently Compiz can't be installed, or upgraded, on armhf.