Eclipse crashes :(

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https://bbs.archlinux.org – Hi, I've looked everywhere and I can 't find out why my eclipse is crashing.The crash happens when I click "minimize" or "pop out button on one of the sub-windows (ex "Package Explorer").The only output I get is:(Eclipse:29718): Gtk-WARNING **: Unable to locate theme engine in module_path: "murrine", ** Gtk:ERROR:gtkwidget.c:8828:gtk_widget_real_map: assertion failed: (gtk_widget_get_realized (widget))Though I get that even if I just exit eclipse, so I assume it is unrelated.Version is:  4.2.0BtwThis happens every time.I have eclipse-cdt & (HowTos)