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

Question

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

Answer 1

Waitting for answers