I've built a JAR file which functions up to the point of actually executing the thing.I get this error when I execute using java -jar .jar:
java.io.InvalidCLassException: javax.swing.JComponent; local class incompatible: stream classdesc serialVersionUID = -5353880800724033550, local class serialVersionUID = 7917968344860800289
and then the program quits.
I get the splash screen I set up to come up (JLabel inside an undecorated JFrame with a JProgressBar at the bottom)and then the error occurs. I shouldn't have to include the swing lib should I? Any ideas as to what causes this?