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ORA-12557: TNS:protocol adapter not loadable" launching Controller, caused by Windows system variable ORACLE_HOME
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oracle 11g r2 - SQLPlus "no listener" only with a remote connection from Windows - Database Administrators Stack Exchange
![SOLVED] ORA-12560: TNS : protocol adaptor error in Oracle 21c | Fix Protocol Adapter Error - YouTube SOLVED] ORA-12560: TNS : protocol adaptor error in Oracle 21c | Fix Protocol Adapter Error - YouTube](https://i.ytimg.com/vi/Cl_S74k3H8k/maxresdefault.jpg)
SOLVED] ORA-12560: TNS : protocol adaptor error in Oracle 21c | Fix Protocol Adapter Error - YouTube
![How to solve ORA-12560: TNS:Protocol Adapter Error in Oracle Database || Tns Protocol Adaptor Error - YouTube How to solve ORA-12560: TNS:Protocol Adapter Error in Oracle Database || Tns Protocol Adaptor Error - YouTube](https://i.ytimg.com/vi/eZ8DB9Aog0c/maxresdefault.jpg)