Fixing Iris and Iris mini on Xubuntu

Just tested the latest versions of Iris and Iris mini on Xubuntu and got an error

xubuntu@xubuntu:~/Downloads/iris-mini-0.2.2-linux$ ./iris-mini.sh
Starting 64-bit Iris mini
./iris-mini-0.2.2_x64: error while loading shared libraries: libxcb-randr.so.0: cannot open shared object file: No such file or directory

This can be easily fixed by running this command in Terminal

sudo apt-get install libxcb-randr0

After this