Error to connection Jdeveloper with database

Hello world ,
i want to make a connection between jdeveloper and database but i got this error message when i do test
Io exception: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=169869568)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
i am working on client , and oracle developer is connected with database .
regards

SID is like what is use for developer , it is 100% correctThe error code you are getting (12505) indicates otherwise
http://www.error-code.org.uk/view.asp?e=ORACLE-TNS-12505
Perhaps you are pointing to the wrong host/IP address
John

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Connection jdeveloper with database

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THIS IS WHAT I HAVE IN TNSNAMES.ORA
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Error to connection Jdeveloper with database

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