Can't find bundle for base name resources.translations.Translations, locale en

[centaurialpha]

Hola!

al correr el programa con ant run la salida es:

Buildfile: /home/gabo/Downloads/JITRAX-master/build.xml

run:
     [java] Exception in thread "main" java.util.MissingResourceException: Can't find bundle for base name resources.translations.Translations, locale en
     [java] 	at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1573)
     [java] 	at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1396)
     [java] 	at java.util.ResourceBundle.getBundle(ResourceBundle.java:854)
     [java] 	at es.ull.etsii.jitrax.gui.MainWindow.<init>(Unknown Source)
     [java] 	at es.ull.etsii.jitrax.gui.MainWindow.main(Unknown Source)
     [java] Java Result: 1

BUILD SUCCESSFUL
Total time: 2 seconds