Erro ao tentar executar a aplicação e abrir tela de login JavaFX arquivo FXML

o erro :

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:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	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:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
	at java.base/java.lang.Thread.run(Thread.java:830)
Caused by: java.lang.IllegalAccessError: class com.sun.javafx.fxml.FXMLLoaderHelper (in unnamed module @0x5ecd38bd) cannot access class com.sun.javafx.util.Utils (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.util to unnamed module @0x5ecd38bd
	at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>(FXMLLoaderHelper.java:38)
	at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2056)
	at controller.LoginController.start(LoginController.java:25)
	at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$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
Exception running application controller.LoginController

o arquivo FXML:

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

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ComboBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.PasswordField?>
<?import javafx.scene.layout.AnchorPane?>

<fx:root maxHeight="-Infinity" maxWidth="-Infinity"
	minHeight="-Infinity" minWidth="-Infinity" prefHeight="174.0"
	prefWidth="282.0" type="AnchorPane" xmlns="http://javafx.com/javafx/16"
	xmlns:fx="http://javafx.com/fxml/1"
	fx:controller="controller.LoginController"> 
	<children>
		<Button layoutX="113.0" layoutY="133.0" mnemonicParsing="false"
			text="Entrar" />
		<Label layoutX="14.0" layoutY="14.0" text="Usuário" />
		<Label layoutX="14.0" layoutY="77.0" text="Senha" />
		<ComboBox fx:id="users" layoutX="11.0" layoutY="31.0"
			prefHeight="25.0" prefWidth="252.0" />
		<PasswordField fx:id="senha" layoutX="11.0"
			layoutY="96.0" prefHeight="25.0" prefWidth="252.0" />
	</children>
</fx:root>

a classe controler:

package controller;

import java.net.URL;

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

public class LoginController extends Application {
	

	public static void main(String[] args) {
		launch(args);
		
	}
	
	
	@Override
	public void start(Stage palco) throws Exception{
		
		URL arquivoFXML = this.getClass().getResource("login.fxml");
		
		Parent fxmlParent = (Parent) FXMLLoader.load(arquivoFXML);
		  palco.setScene(new Scene(fxmlParent, 300, 100));
		  palco.setTitle("Olá mundo com FXML");
		  palco.show();
		
	}
	
}

ja fiz varios testes e nao funcionou :frowning:

Realmente, não está correto o LoginController dentro do fxml.

Está usando NetBeans?

Boa noite e desculpe pela demora estou usando o eclipse !!!

Então…
Vou ver um exemplo e te posto, mas tá para o Netbeans, que não é nenhum problema.
Veja se o Eclipse importa projetos do NetBeans, caso contrario somente ir na pasta src copiar e colar no src do Eclipse.