Hello a stupid question again about flow.

[Rage Guy]

I just started learning the Data-fx Flow API this is at my pom

        <dependency>

            <groupId>org.javafxdata</groupId>

            <artifactId>datafx-flow</artifactId>

            <version>8.0b5</version>

            <type>jar</type>

        </dependency>

at main Main class start method

    public void start(Stage primaryStage) throws Exception {

        Flow flow  = new Flow(MainViewController.class);

        FlowHandler flowHandler = flow.createHandler();

        StackPane pane = flowHandler.start(new DefaultFlowContainer());

        primaryStage.setScene(new Scene(pane));

        primaryStage.show();
}

my .fxml file

<AnchorPane id="AnchorPane" minHeight="640.0" minWidth="1136.0" prefHeight="640.0" prefWidth="1136.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8">

   <children>

      <StackPane fx:id="centerPane" layoutY="30.0" prefHeight="610.0" prefWidth="1136.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="30.0">

         <children>

            <Button fx:id="loginButton" mnemonicParsing="false" onAction="#goToLogin" text="Clickhere to login" />

         </children>

      </StackPane>

   </children>

</AnchorPane>

my main controller class

@FXMLController("Main.fxml")

public class MainViewController {

    

    @FXML

    @ActionTrigger("goToLogin")

    private Button loginButton;

    

    @FXML

    private StackPane centerPane;

    

    private FlowHandler flowHandler;

    

    /**

     * Initializes the controller class.

     * @throws org.datafx.controller.flow.FlowException

     */

    @PostConstruct

    public void init()throws FlowException{

        Flow flow = new Flow(MainViewController.class).

                withLink(MainViewController.class, "goToLogin",LoginViewController.class);

        flowHandler = flow.createHandler();

        centerPane.getChildren().add(flowHandler.start

        (new AnimatedFlowContainer(Duration.millis(320), ContainerAnimations.ZOOM_IN)));

    }

    

    @ActionMethod("goToLogin")

    public void goLogin() throws VetoException, FlowException{

        flowHandler.handle("goToLogin");

    }

    

}

my other controller class

@FXMLController("Login.fxml")

public class LoginViewController{

... ... .. 

    

}

iv'e also got another fxml for this one. but these are the errors when i build / run my application btw i am using NETBEANS 8 with jdk8 and maven(i created the project as a new maven javafx project with netbeans.)
The problem is at line 35, but i don't see something is wrong there.

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:483)

at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:367)

at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:305)

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:483)

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:894)

at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:56)

at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:158)

at java.lang.Thread.run(Thread.java:745)

Caused by: org.datafx.controller.flow.FlowException: org.datafx.controller.FxmlLoadException: java.lang.IllegalStateException: Location is not set.

at org.datafx.controller.flow.FlowHandler.start(FlowHandler.java:138)

at org.datafx.controller.flow.Flow.start(Flow.java:274)

at org.datafx.controller.flow.Flow.start(Flow.java:249)

at org.datafx.controller.flow.Flow.startInStage(Flow.java:253)

at com.creamylatte.datafxt.MainApp.start(MainApp.java:35)

at com.sun.javafx.application.LauncherImpl$8.run(LauncherImpl.java:837)

at com.sun.javafx.application.PlatformImpl$7.run(PlatformImpl.java:335)

at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:301)

at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:298)

at java.security.AccessController.doPrivileged(Native Method)

at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:298)

at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)

at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)

at com.sun.glass.ui.win.WinApplication$4$1.run(WinApplication.java:112)

... 1 more

Caused by: org.datafx.controller.FxmlLoadException: java.lang.IllegalStateException: Location is not set.

at org.datafx.controller.ViewFactory.createByController(ViewFactory.java:116)

at org.datafx.controller.flow.FlowHandler.start(FlowHandler.java:135)

... 15 more

Caused by: java.lang.IllegalStateException: Location is not set.

at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2434)

at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)

at org.datafx.controller.ViewFactory.createByController(ViewFactory.java:100)

... 16 more

Exception running application com.creamylatte.datafxt.MainApp

Please respond.

[Nicolas Zhang]

I think the key error is 'FxmlLoadException: java.lang.IllegalStateException: Location is not set' which means your fxml path is not correct.

Usually, the fxml file created by netbeans is located at /fxml/yourFileName.fxml, so try to change @FXMLController("Main.fxml") to @FXMLController("/fxml/Main.fxml").

[Hendrik Ebbers]

Yes, the path to your fxml file is wrong.