I tried the sysrw command and.it still gives me the same error..tried rebooting too still nothingyes ... you need to mount /system as r/w. As stated in the changelog, this ROM accepts sysrw and sysro commands. Open terminal emulator (provided with the ROM), type "su" [hit enter], grant it root permission, type "sysrw'" [hit enter]. Your system is now mounted as r/w.