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java.lang.NullPointerException: 	at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191)	at com.google.common.io.Resources$UrlByteSource.(Resources.java:77)	at com.google.common.io.Resources$UrlByteSource.(Resources.java:72)	at com.google.common.io.Resources.asByteSource(Resources.java:66)	at com.google.common.io.Resources.asCharSource(Resources.java:111)	at com.google.common.io.Resources.toString(Resources.java:136)	at com.google.appinventor.buildserver.ProjectBuilder.getAllComponentTypes(ProjectBuilder.java:238)	at com.google.appinventor.buildserver.ProjectBuilder.build(ProjectBuilder.java:166)	at com.google.appinventor.buildserver.Main.main(Main.java:82)