If you created the state file on the same platform on which you are running the silent installation, generate a new state file and reinstall.
If you are using a state file that was created on a different platform or version, the problem is that state files must be run on the same type of platform on which they are created. For example, if you created the state file on Solaris 9, you cannot use it on Solaris 8, or, if you created the state file on the x86 platform, you cannot use it on the SPARC platform.