Im getting error while installing Oracle 21c express edition on Windows 2016 server. Earlier Oracle 11g and that was uninstalled.
[FATAL] ORA-12560: TNS:protocol adapter error
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Performing post XE database creation actions...
Post XE database creation actions completed.
{IDS_OracleConfigDlg_DatabaseConfigFailedMsg} An error occurred while configuring Oracle XE database. Check the logs at C:\app\thangaadminsvr\product\21c\cfgtoollogs\dbca and try again.