After installing SQL Developer on an Oracle Linux machine (Oracle Cloud), and having it working great on Wednesday through MobaXterm, it now is throwing this error.
MobaXterm X11 proxy: Unsupported authorisation protocol
Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:115)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:103)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82)
at sun.awt.X11.XToolkit.<clinit>(XToolkit.java:126)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at java.awt.Toolkit$2.run(Toolkit.java:860)
at java.awt.Toolkit$2.run(Toolkit.java:855)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:854)
at java.awt.Toolkit.getEventQueue(Toolkit.java:1734)
at java.awt.EventQueue.isDispatchThread(EventQueue.java:1043)
at javax.swing.SwingUtilities.isEventDispatchThread(SwingUtilities.java:1361)
at oracle.ide.osgi.boot.SplashScreenImpl.SynchronizeWithEdt(SplashScreenImpl.java:529)
at oracle.ide.osgi.boot.api.SplashScreen.createInstance(SplashScreen.java:66)
at oracle.ide.osgi.boot.OracleIdeLauncher.showSplashScreen(OracleIdeLauncher.java:828)
at oracle.ide.osgi.boot.OracleIdeLauncher.main(OracleIdeLauncher.java:109)
I found a couple of non-useful suggestions with a Google search.
I even tried creating an entirely new machine and starting over with a new installation of sqldeveloper. Still no good. Same thing.
Any thoughts?