SP2-1503: Unable to initialize Oracle call interface SP2-1503: Unable to initialize solution to Oracle Problem

The following error is reported when running sqlplus in cmd in win7.
SP2-1503: Unable to initialize Oracle call interface
SP2-1503: Unable to initialize Oracle tuning SP2-0152
Solution:
Right-click sqlplus.exe In the oracle \ product \ 10.2.0 \ db_2 \ BIN directory and choose "compatibility"> "run this program in compatible mode ".
Right-click and run as administrator. Then, a black window is opened. Enter the username: system password: (your password)
Check if you can go in.
If you can go in, you can. If the problem persists, go to Baidu.
If this is the case, I can go in.

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