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oracle - MAC OSX, sqldeveloper error message: Network adapter could not establish the connection error

Can anyone help me with this problem when I try to create a connection, this error shows up.

I tried with other hostname and other ports but it shows the same error.

question from:https://stackoverflow.com/questions/65908140/mac-osx-sqldeveloper-error-message-network-adapter-could-not-establish-the-con

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