ORA-12560 error for 8.1.6 installation

Hi, can everyone here tell me how to deal with it?
after installation for 8.1.6, I want to log on sql/plus with scott/tiger, but ora-12560 come out:
protocol adaptor error
how to handle this problem,thanks
SHAN

The installer should have given you a few options-- a client-only install, a database and client install, etc. Did the installer prompt you for things like a SID for your database?
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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    user588235 wrote:
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    I get the problem whether I try to access it locally or remotely. Enterprise manager also seems to not be functioning.
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    user6245518 wrote:
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