启动GUI时出现JavaFX问题

我在IntelliJ中启动了一个JavaFX项目，并在中使用场景生成器创建了一个GUI。 我自己还没有添加任何代码行，所有代码都是根据我在设计方面构建的内容自动生成的

不幸的是，我甚至不能启动它

这是我的主课：

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

public class Main extends Application {

   @Override
   public void start(Stage primaryStage) throws Exception{
       Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
       primaryStage.setTitle("WowImporter");
       primaryStage.setScene(new Scene(root, 300, 275));
       primaryStage.show();
   }


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

}

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

<?import com.gluonhq.charm.glisten.mvc.View?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.CheckBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.Separator?>
<?import javafx.scene.control.Spinner?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>

<GridPane alignment="center" hgap="10" style="-fx-background-color: #FFFFFF;" vgap="10" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
   <columnConstraints>
      <ColumnConstraints />
   </columnConstraints>
   <rowConstraints>
      <RowConstraints />
   </rowConstraints>
   <children>
      <AnchorPane prefHeight="772.0" prefWidth="510.0">
         <children>
            <VBox layoutX="9.0" layoutY="177.0" prefHeight="189.0" prefWidth="126.0">
               <children>
                  <Label prefHeight="39.0" prefWidth="122.0" text="Was wird importiert?">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
                  <Separator prefHeight="54.0" prefWidth="126.0" />
                  <Label alignment="CENTER_RIGHT" prefHeight="18.0" prefWidth="115.0" text="Anzahl WE-Stellen:">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
                  <Separator prefHeight="26.0" prefWidth="126.0" />
                  <Label alignment="CENTER_RIGHT" prefHeight="18.0" prefWidth="116.0" text="Quellpfad:" textAlignment="CENTER">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
                  <Separator prefHeight="18.0" prefWidth="119.0" />
                  <Label alignment="CENTER_RIGHT" prefHeight="18.0" prefWidth="114.0" text="Zielpfad:">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
               </children>
            </VBox>
            <VBox layoutX="151.0" layoutY="188.0" prefHeight="190.0" prefWidth="338.0">
               <children>
                  <CheckBox mnemonicParsing="false" text="Pläne" />
                  <Separator prefHeight="8.0" prefWidth="338.0" />
                  <CheckBox mnemonicParsing="false" text="Galerie" />
                  <Separator prefHeight="18.0" prefWidth="338.0" />
                  <Spinner prefHeight="26.0" prefWidth="59.0" />
                  <Separator prefHeight="14.0" prefWidth="338.0" />
               </children>
            </VBox>
            <ImageView fitHeight="113.0" fitWidth="356.0" layoutX="79.0" layoutY="42.0" pickOnBounds="true" preserveRatio="true">
               <image>
                  <Image url="@Bilder/wowi-logo-2017.jpg" />
               </image>
            </ImageView>
            <Button layoutX="276.0" layoutY="388.0" mnemonicParsing="false" prefHeight="39.0" prefWidth="94.0" style="-fx-text-fill: #000000; -fx-background-color: #FFFFFF; -fx-border-color: #000000; -fx-font-weight: bold;" text="Importieren">
               <font>
                  <Font name="System Bold" size="12.0" />
               </font>
            </Button>
            <Button layoutX="162.0" layoutY="388.0" mnemonicParsing="false" prefHeight="39.0" prefWidth="94.0" style="-fx-text-fill: #000000; -fx-background-color: #FFFFFF; -fx-border-color: #000000; -fx-font-weight: bold;" text="Scannen">
               <font>
                  <Font name="System Bold" size="12.0" />
               </font>
            </Button>
            <View layoutX="28.0" layoutY="449.0" prefHeight="302.0" prefWidth="456.0" />
         </children>
      </AnchorPane>
   </children>
</GridPane>

"C:\Program Files\Java\javafx-sdk-15.0.1\bin\java.exe" --module-path C:\Users\b.ummak\Downloads\openjfx-15.0.1_windows-x64_bin-sdk\javafx-sdk-15.0.1\lib --add-modules=javafx.base,javafx.controls,javafx.fxml,javafx.graphics,javafx.media,javafx.swing,javafx.web --add-modules javafx.base,javafx.graphics --add-reads javafx.base=ALL-UNNAMED --add-reads javafx.graphics=ALL-UNNAMED "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2020.2.3\lib\idea_rt.jar=54847:C:\Program Files\JetBrains\IntelliJ IDEA 2020.2.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Users\b.ummak\IdeaProjects\WowImporterNEU\out\production\WowImporterNEU;C:\Program Files\Java\jdk-15.0.1\lib\javafx.web.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.controls.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.base.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.media.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.swing.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.fxml.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.graphics.jar" sample.Main
Exception in Application start method
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1071)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
    at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: javafx.fxml.LoadException: 
/C:/Users/b.ummak/IdeaProjects/WowImporterNEU/out/production/WowImporterNEU/sample/sample.fxml

    at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2707)
    at javafx.fxml/javafx.fxml.FXMLLoader.importClass(FXMLLoader.java:2949)
    at javafx.fxml/javafx.fxml.FXMLLoader.processImport(FXMLLoader.java:2793)
    at javafx.fxml/javafx.fxml.FXMLLoader.processProcessingInstruction(FXMLLoader.java:2758)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2624)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3323)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3280)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3249)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3222)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3199)
    at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3192)
    at sample.Main.start(Main.java:13)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    ... 1 more
Caused by: java.lang.ClassNotFoundException: com.gluonhq.charm.glisten.mvc.View
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadTypeForPackage(FXMLLoader.java:3017)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadType(FXMLLoader.java:3006)
    at javafx.fxml/javafx.fxml.FXMLLoader.importClass(FXMLLoader.java:2947)
    ... 20 more
Exception running application sample.Main

Process finished with exit code 1

这是fxml文件：

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

public class Main extends Application {

   @Override
   public void start(Stage primaryStage) throws Exception{
       Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
       primaryStage.setTitle("WowImporter");
       primaryStage.setScene(new Scene(root, 300, 275));
       primaryStage.show();
   }


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

}

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

<?import com.gluonhq.charm.glisten.mvc.View?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.CheckBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.Separator?>
<?import javafx.scene.control.Spinner?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>

<GridPane alignment="center" hgap="10" style="-fx-background-color: #FFFFFF;" vgap="10" xmlns="http://javafx.com/javafx/15.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
   <columnConstraints>
      <ColumnConstraints />
   </columnConstraints>
   <rowConstraints>
      <RowConstraints />
   </rowConstraints>
   <children>
      <AnchorPane prefHeight="772.0" prefWidth="510.0">
         <children>
            <VBox layoutX="9.0" layoutY="177.0" prefHeight="189.0" prefWidth="126.0">
               <children>
                  <Label prefHeight="39.0" prefWidth="122.0" text="Was wird importiert?">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
                  <Separator prefHeight="54.0" prefWidth="126.0" />
                  <Label alignment="CENTER_RIGHT" prefHeight="18.0" prefWidth="115.0" text="Anzahl WE-Stellen:">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
                  <Separator prefHeight="26.0" prefWidth="126.0" />
                  <Label alignment="CENTER_RIGHT" prefHeight="18.0" prefWidth="116.0" text="Quellpfad:" textAlignment="CENTER">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
                  <Separator prefHeight="18.0" prefWidth="119.0" />
                  <Label alignment="CENTER_RIGHT" prefHeight="18.0" prefWidth="114.0" text="Zielpfad:">
                     <font>
                        <Font name="System Bold" size="12.0" />
                     </font>
                  </Label>
               </children>
            </VBox>
            <VBox layoutX="151.0" layoutY="188.0" prefHeight="190.0" prefWidth="338.0">
               <children>
                  <CheckBox mnemonicParsing="false" text="Pläne" />
                  <Separator prefHeight="8.0" prefWidth="338.0" />
                  <CheckBox mnemonicParsing="false" text="Galerie" />
                  <Separator prefHeight="18.0" prefWidth="338.0" />
                  <Spinner prefHeight="26.0" prefWidth="59.0" />
                  <Separator prefHeight="14.0" prefWidth="338.0" />
               </children>
            </VBox>
            <ImageView fitHeight="113.0" fitWidth="356.0" layoutX="79.0" layoutY="42.0" pickOnBounds="true" preserveRatio="true">
               <image>
                  <Image url="@Bilder/wowi-logo-2017.jpg" />
               </image>
            </ImageView>
            <Button layoutX="276.0" layoutY="388.0" mnemonicParsing="false" prefHeight="39.0" prefWidth="94.0" style="-fx-text-fill: #000000; -fx-background-color: #FFFFFF; -fx-border-color: #000000; -fx-font-weight: bold;" text="Importieren">
               <font>
                  <Font name="System Bold" size="12.0" />
               </font>
            </Button>
            <Button layoutX="162.0" layoutY="388.0" mnemonicParsing="false" prefHeight="39.0" prefWidth="94.0" style="-fx-text-fill: #000000; -fx-background-color: #FFFFFF; -fx-border-color: #000000; -fx-font-weight: bold;" text="Scannen">
               <font>
                  <Font name="System Bold" size="12.0" />
               </font>
            </Button>
            <View layoutX="28.0" layoutY="449.0" prefHeight="302.0" prefWidth="456.0" />
         </children>
      </AnchorPane>
   </children>
</GridPane>

"C:\Program Files\Java\javafx-sdk-15.0.1\bin\java.exe" --module-path C:\Users\b.ummak\Downloads\openjfx-15.0.1_windows-x64_bin-sdk\javafx-sdk-15.0.1\lib --add-modules=javafx.base,javafx.controls,javafx.fxml,javafx.graphics,javafx.media,javafx.swing,javafx.web --add-modules javafx.base,javafx.graphics --add-reads javafx.base=ALL-UNNAMED --add-reads javafx.graphics=ALL-UNNAMED "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2020.2.3\lib\idea_rt.jar=54847:C:\Program Files\JetBrains\IntelliJ IDEA 2020.2.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Users\b.ummak\IdeaProjects\WowImporterNEU\out\production\WowImporterNEU;C:\Program Files\Java\jdk-15.0.1\lib\javafx.web.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.controls.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.base.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.media.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.swing.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.fxml.jar;C:\Program Files\Java\jdk-15.0.1\lib\javafx.graphics.jar" sample.Main
Exception in Application start method
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1071)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
    at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: javafx.fxml.LoadException: 
/C:/Users/b.ummak/IdeaProjects/WowImporterNEU/out/production/WowImporterNEU/sample/sample.fxml

    at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2707)
    at javafx.fxml/javafx.fxml.FXMLLoader.importClass(FXMLLoader.java:2949)
    at javafx.fxml/javafx.fxml.FXMLLoader.processImport(FXMLLoader.java:2793)
    at javafx.fxml/javafx.fxml.FXMLLoader.processProcessingInstruction(FXMLLoader.java:2758)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2624)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3323)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3280)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3249)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3222)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3199)
    at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3192)
    at sample.Main.start(Main.java:13)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    ... 1 more
Caused by: java.lang.ClassNotFoundException: com.gluonhq.charm.glisten.mvc.View
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadTypeForPackage(FXMLLoader.java:3017)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadType(FXMLLoader.java:3006)
    at javafx.fxml/javafx.fxml.FXMLLoader.importClass(FXMLLoader.java:2947)
    ... 20 more
Exception running application sample.Main

Process finished with exit code 1

---

如果你们中有人能帮我解决这个问题，我将非常高兴。非常感谢各位。

这里有一个非常简单的步骤。通过此链接，您将找到缺少的步骤。

好的，伙计们，我自己发现了错误。 就是这个：

有一个名为Gluon Mobile的Gluon软件包，您必须为场景生成器使用的一些元素购买该软件包

我使用的是“视图”元素，其中一个需要Gluon Mobile软件包，而我没有，当然他找不到它。

删除此导入

<?import com.gluonhq.charm.glisten.mvc.View?>

或 添加胶子jar库

---

更多帮助

嗨，吉米，谢谢你的回答。但是我已经完成了上面提到的所有步骤：（您缺少一个包含

com.glionhq.charm.glisten.mvc.View

的库，这可能会有所帮助。