Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialGrant Murphy
10,072 PointsNeed help with Build State Change Events Pomodora receiving a java.lang.reflect.InvocationTargetException
I have been all over stackoverflow and other sites and cannot seem to resolve this error. Any help would be greatly appreciated
"C:\Program Files\Java\jdk1.8.0_51\bin\java.exe" -javaagent:C:\Users\Grant\.IdeaIC2018.2\system\captureAgent\debugger-agent.jar=file:/C:/Users/Grant/AppData/Local/Temp/capture.props -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_51\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\rt.jar;C:\Users\Grant\Desktop\Promodora\out\production\Pomodoro;C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.2.1\lib\idea_rt.jar" com.teamtreehouse.pomodoro.Main
Connected to the target VM, address: '127.0.0.1:53855', transport: 'socket'
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$152(LauncherImpl.java:182)
at com.sun.javafx.application.LauncherImpl$$Lambda$50/1471868639.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException: Location is required.
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3211)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3179)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3152)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3128)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3108)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3101)
at com.teamtreehouse.pomodoro.Main.start(Main.java:23)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$159(LauncherImpl.java:863)
at com.sun.javafx.application.LauncherImpl$$Lambda$53/1945542069.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$172(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl$$Lambda$45/1782704802.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$null$170(PlatformImpl.java:295)
at com.sun.javafx.application.PlatformImpl$$Lambda$48/1342638649.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$171(PlatformImpl.java:294)
at com.sun.javafx.application.PlatformImpl$$Lambda$47/2094411587.run(Unknown Source)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run$$$capture(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$145(WinApplication.java:101)
at com.sun.glass.ui.win.WinApplication$$Lambda$36/152134087.run(Unknown Source)
... 1 more
Disconnected from the target VM, address: '127.0.0.1:53855', transport: 'socket'
Exception running application com.teamtreehouse.pomodoro.Main
And here is the controller code and the main method
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.shape.SVGPath?>
<VBox xmlns:fx="http://javafx.com/fxml"
stylesheets="/css/main.css"
xmlns="http://javafx.com/javafx/8"
fx:controller="com.teamtreehouse.pomodoro.controllers.Home"
fx:id="container">
<children>
<Button fx:id="DEBUG" onAction="#DEBUG"/>
<Label fx:id="title" text="Pomodoro"/>
<Label fx:id="time" text="00:00"/>
<HBox styleClass="buttons">
<children>
<StackPane>
<children>
<StackPane styleClass="nested-action,play">
<children>
<HBox styleClass="svg-container">
<SVGPath styleClass="svg"
content="M1.6 17C1 17 0 16.2 0 15.6V1.3C0 .1 2.2-.4 3.1.4l8.2 6.4c.5.4.8 1 .8 1.7 0 .6-.3 1.2-.8 1.7l-8.2 6.4c-.5.2-1 .4-1.5.4z"/>
</HBox>
<Button text="Resume"/>
</children>
</StackPane>
<StackPane styleClass="nested-action,pause">
<children>
<HBox styleClass="svg-container">
<SVGPath styleClass="svg"
content="M10.2 17c-1 0-1.8-.8-1.8-1.8V1.8c0-1 .8-1.8 1.8-1.8S12 .8 12 1.8v13.4c0 1-.8 1.8-1.8 1.8z"/>
<SVGPath styleClass="svg"
content="M10.2 17c-1 0-1.8-.8-1.8-1.8V1.8c0-1 .8-1.8 1.8-1.8S12 .8 12 1.8v13.4c0 1-.8 1.8-1.8 1.8z"/>
</HBox>
<Button text="Pause"/>
</children>
</StackPane>
</children>
</StackPane>
<StackPane styleClass="nested-action,restart">
<children>
<HBox styleClass="svg-container">
<SVGPath styleClass="svg"
content="M21 2.9C19.1 1 16.6 0 13.9 0c-1.1 0-2 .9-2 1.9s.9 1.9 2 1.9c1.7 0 3.2.6 4.4 1.8 2.4 2.4 2.4 6.3 0 8.7-1.2 1.2-2.7 1.8-4.4 1.8-1.7 0-3.2-.6-4.4-1.8-1.8-1.8-2.3-4.4-1.4-6.7L9.3 10c.2.4.5.7.9.8.4.1.8.1 1.2-.1.8-.4 1.1-1.3.8-2.1L10 4.3c0-.5-.2-1-.6-1.4l-.1-.1-.1-.2c-.2-.4-.5-.7-.9-.8-.4-.1-.8-.1-1.2.1L.9 4.8C.1 5.2-.2 6.1.2 6.9c.2.4.5.7.9.8.4.1.8.1 1.2-.1l2-.9c-1.2 3.5-.4 7.6 2.4 10.4C8.6 19 11.2 20 13.9 20s5.3-1 7.2-2.9C25 13.2 25 6.8 21 2.9z"/>
</HBox>
<Button text="Restart"/>
</children>
</StackPane>
</children>
</HBox>
<TextArea fx:id="message" promptText="What are you doing?"/>
<ImageView>
<image>
<Image url="/images/pomodoro.png"/>
</image>
</ImageView>
</children>
</VBox>
Space
Font font = Font.loadFont(getClass().getResource("/fonts/VarelaRound-Regular.ttf").toExternalForm(), 10);
Parent root = FXMLLoader.load(getClass().getResource("\\resources\\fxml\\home.fxml"));
primaryStage.setScene(new Scene(root, 500, 500));
primaryStage.setResizable(false);
primaryStage.show();
1 Answer
Grant Murphy
10,072 PointsFixed I removed fx:id="title" out of the label field
<Label fx:id="title" text="Pomodoro"/>
so now it is just
<Label text="Pomodoro"/>
I would really like to know why though?