08006][17002] IO Error: could not resolve the connect identifier "tnsnames.ora" Follow
I try it, a lot time.Why Datagrip as others jetbrain products , is veri difficult setup.
Any body , have any idea for that is work?
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Are you trying to connect to Oracle with tnsnames.ora file?
Make sure you choose correct URL format:

Since a few weeks i have the same problem.
[08006][17002] I/O-Fehler: could not resolve the connect identifier "XXXX"
java.lang.RuntimeException: oracle.net.ns.NetException: could not resolve the connect identifier "XXXX"
It worked before and it just stopped working out of the blue. A tnsping <identifier> is working fine. When i take the information from the tnsping output like Host and Service, the connection works fine. Any idea what the problem could be ?