I've downloaded the weblogic (12.2.1.3) quick installer and installed.
In eclispe (oxygen), I've installed the Oracle Weblogic Server tool plugin (17.0.0.201709131633).
I'm trying to add New Server Runtime -> Oracle Weblogic Server. In the dialog, I have tried adding the weblogic install directory and the wlserver directory (c:\oraclexe\wls12213\wlserver). Eclipse says "... does not contain a valid WebLogic Server install or the installed version is not supported.". Oracles website says "Full support for versions 9.2 through 12.1.3.".
Am I missing something?
Yes you are.
Oracles website says "Full support for versions 9.2 through 12.1.3"
And you are using a later version :
12.2.1.3