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SCHWERWIEGEND [ReaderVRML.setInput]: VRML 1 parsing failed, call ANTLR first!
java.lang.ClassNotFoundException: de.jreality.reader.vrml.VRMLV1Lexer
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at de.jreality.reader.ReaderVRML.setInput(ReaderVRML.java:65)
at de.jreality.reader.Readers.read(Readers.java:144)
at de.jreality.reader.Readers.read(Readers.java:158)
at de.jreality.reader.Readers.read(Readers.java:196)
at de.jreality.plugin.content.ContentLoader.loadFile(ContentLoader.java:99)
at de.jreality.plugin.content.ContentLoader.access$0(ContentLoader.java:92)
at de.jreality.plugin.content.ContentLoader$ContentLoadAction.actionPerformed(ContentLoader.java:77)
How can antlr be called properly?