i'm using rSap now with the Slimkat 4.4.2 Weekly Roms. With the Build of last week everything was working fine.
After this weekly Build released yesterday the Installation of the Files fails.
In the Changelog i've seen something about new File Directions or Toolchain paths in the new Omni Roms. I'm using Yank Kernel and on his site there is a beta Kernel which is using both paths because some Omni Roms stay with the old paths and some will use the new ones.
Here is the Link to the Changelog of Slimkat 4.4.2 http://www.slimroms.net/jdownloads/slim
I always got good Support from this site so you can maybe fix this Issue
After i used Root Explorer in the Directory /system/lib/hw and pressed the Button Mount RW files installed with the RSAP Installation App, and after a restart connection with my car was successfull.
The Directory included before only bluetooth.default.so now it has both Files with bluetooth.exynos4.so.
After a reboot the same Error in rSap Installation App comes again but normal rSap App gives no Error, because the Files are installed. Maybe you only have to change the installscript a little to get it working again. On Slimroms Site there are more weeklys for different phones to test it.