i Can't solve Oracle db 21c express edition installation problem

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During installation of Oracle db 21c Express Edition

Check the status of the environment variable installation part Make sure ORACLE_HOME and TNS_ADMIN are not set. I was wondering what this means, so I tried it without oracle_home, but there is a problem even if I install oracle_home

If I open a cmd window and type sqlplus oracle_home it is set up fine. Version can be checked

However, prerequisite checks cannot install environment variables. Not working after rebootenter image description here

1 Answers

You need to set the environment variable as it is, it is case sensitive use ORACLE_HOME instead of oracle_home, and same for TNS_ADMIN

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