Oracle 8i? Really?
Why are you installing a version of oracle that hasn't been supported in this millenium, and is SEVEN major releases behind current? (8i, -> 9.1 -> 9.2 -> 10.2 -> 10.2 -> 11.1 -> 11.2 -> 12.1).
Now, to your question .... an error message with no context little better than no error message at all.
EXACTLY what did you do that resulted in this error? Exact commands, full commands, please.
In the absence of any context for the error . . . Let me google that for you