Basic javafx scenebuilder fxml file causes error

Question

I am trying to create a basic window with a couple of tabs in the middle, with the first tab containing a table.

Each time I run the main java class it gives me errors, even when I get rid of table and tabs.

Here is my main file:

package application;

import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.fxml.FXMLLoader;


public class Main extends Application {
    @Override
    public void start(Stage primaryStage) {
        try {
            BorderPane root = (BorderPane)FXMLLoader.load(getClass().getResource("Sample.fxml"));
            Scene scene = new Scene(root,400,400);
            scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
            primaryStage.setScene(scene);
            primaryStage.show();
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        launch(args);
    }
}

Here is my fxml file:

<?xml version="1.0" encoding="UTF-8"?>

<?import com.gluonhq.charm.glisten.control.NavigationDrawer?>
<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>

<BorderPane xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application/SampleController.java">
   <left>
      <GridPane minHeight="-Infinity" minWidth="-Infinity" prefHeight="720.0" prefWidth="1280.0" BorderPane.alignment="CENTER">
        <columnConstraints>
          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="300.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="580.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="300.0" />
        </columnConstraints>
        <rowConstraints>
          <RowConstraints maxHeight="81.0" minHeight="60.0" prefHeight="60.0" vgrow="SOMETIMES" />
          <RowConstraints maxHeight="152.0" minHeight="60.0" prefHeight="60.0" vgrow="SOMETIMES" />
          <RowConstraints maxHeight="420.0" minHeight="420.0" prefHeight="420.0" vgrow="SOMETIMES" />
            <RowConstraints maxHeight="315.0" minHeight="180.0" prefHeight="180.0" vgrow="SOMETIMES" />
        </rowConstraints>
         <children>
            <TabPane prefHeight="200.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" GridPane.columnIndex="1" GridPane.rowIndex="2">
              <tabs>
                <Tab text="Untitled Tab 1">
                  <content>
                    <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
                           <children>
                              <TableView editable="true" layoutX="109.0" layoutY="47.0" prefHeight="200.0" prefWidth="200.0" tableMenuButtonVisible="true" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                                <columns>
                                  <TableColumn prefWidth="75.0" text="C1" />
                                  <TableColumn prefWidth="75.0" text="C2" />
                                </columns>
                              </TableView>
                           </children>
                        </AnchorPane>
                  </content>
                </Tab>
                <Tab text="Untitled Tab 2">
                  <content>
                    <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
                  </content>
                </Tab>
              </tabs>
            </TabPane>
            <NavigationDrawer GridPane.columnIndex="1" GridPane.rowIndex="3" />
         </children>
      </GridPane>
   </left>
</BorderPane>

Anything helps. I couldn't find anything on this, but possible it's my fxmlloader.load file source? I really don't know.

Here is my error code:

javafx.fxml.LoadException: 
/C:/Users/_____/Desktop/AllJava/Java/SecAnalyzer/bin/application/Sample.fxml

    at javafx.fxml.FXMLLoader.constructLoadException(Unknown Source)
    at javafx.fxml.FXMLLoader.importClass(Unknown Source)
    at javafx.fxml.FXMLLoader.processImport(Unknown Source)
    at javafx.fxml.FXMLLoader.processProcessingInstruction(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.load(Unknown Source)
    at application.Main.start(Main.java:14)
    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$148(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.gluonhq.charm.glisten.control.NavigationDrawer
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at javafx.fxml.FXMLLoader.loadTypeForPackage(Unknown Source)
    at javafx.fxml.FXMLLoader.loadType(Unknown Source)
    ... 21 more

NEW ERROR after installing gluon mobile:

javafx.fxml.LoadException: 
/C:/Users/____/Desktop/AllJava/Java/SecAnalyzer/bin/application/Sample.fxml:14

    at javafx.fxml.FXMLLoader.constructLoadException(Unknown Source)
    at javafx.fxml.FXMLLoader.access$700(Unknown Source)
    at javafx.fxml.FXMLLoader$ValueElement.processAttribute(Unknown Source)
    at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(Unknown Source)
    at javafx.fxml.FXMLLoader$Element.processStartElement(Unknown Source)
    at javafx.fxml.FXMLLoader$ValueElement.processStartElement(Unknown Source)
    at javafx.fxml.FXMLLoader.processStartElement(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.load(Unknown Source)
    at application.Main.start(Main.java:14)
    at com.sun.javafx.application.LauncherImpl.lambda$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$148(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: application/SampleController.java
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 23 more

Answer 1

Do you have NavigationDrawer.class in your classpath ?

Caused by: java.lang.ClassNotFoundException: com.gluonhq.charm.glisten.control.NavigationDrawer

In your FXML file you have:

<?import com.gluonhq.charm.glisten.control.NavigationDrawer?>

So you need to have NavigationDrawer.class in your classpath to properly load the FXML document.

If you do not you need to download it from gluonhq .