Qubit Posted June 29, 2016 Author Posted June 29, 2016 What does the stacktrace say? Exception in Application start method java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(Unknown Source) at com.sun.javafx.application.LauncherImpl.launchApplication(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source) Caused by: java.lang.RuntimeException: Exception in Application start method at com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown Source) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.NullPointerException at com.dfpray.formatter.Main.start(Main.java:150) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(Unknown Source) at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(Unknown Source) at com.sun.javafx.application.PlatformImpl.lambda$null$173(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(Unknown Source) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at com.sun.glass.ui.win.WinApplication.lambda$null$148(Unknown Source) ... 1 more Exception running application com.dfpray.formatter.Main