FFI not working in 5.3

Is there something wrong with FFI and Squeak 5.3?

I tried to run this install and got all sorts of errors:


(Installer repository: 'http://source.squeak.org/FFI')
    install: 'FFI-Pools';
    install: 'FFI-Kernel';
    install: 'FFI-Tests';
    install: 'FFI-Examples'.