im fairly new to coding and need to learn JavaFX and Java in 3 Weeks for school. I need to learn to read those error files, because 3 weeks is not long and i cant ask everytime in this forum xd. So maybe someone can teach me/send me an documentation or something to reading and understanding the errors in the output. Im using Intellij and im getting this error code:
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:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:465) at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1071) Caused by: java.lang.RuntimeException: Exception in Application start method at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:901) at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196) at java.base/java.lang.Thread.run(Thread.java:833) Caused by: java.lang.IllegalArgumentException: Invalid URL: Invalid URL or resource not found at javafx.graphics@18.0.1/javafx.scene.image.Image.validateUrl(Image.java:1135) at javafx.graphics@18.0.1/javafx.scene.image.Image.(Image.java:625) at com.example.speedreading.HelloApplication.start(HelloApplication.java:15) at javafx.graphics@18.0.1/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:847) at javafx.graphics@18.0.1/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484) at javafx.graphics@18.0.1/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457) at java.base/java.security.AccessController.doPrivileged(AccessController.java:399) at javafx.graphics@18.0.1/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456) at javafx.graphics@18.0.1/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96) at javafx.graphics@18.0.1/com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at javafx.graphics@18.0.1/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184) ... 1 more Caused by: java.lang.IllegalArgumentException: Invalid URL or resource not found at javafx.graphics@18.0.1/javafx.scene.image.Image.validateUrl(Image.java:1120) ... 11 more Exception running application com.example.speedreading.HelloApplication
Process finished with exit code 1
Here is my code:
package com.example.speedreading;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.stage.Stage;
import java.io.IOException;
public class HelloApplication extends Application {
@Override
public void start(Stage stage) throws IOException {
FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("hello-view.fxml"));
Scene scene = new Scene(fxmlLoader.load(), 320, 240);
Image icon = new Image("mb.png");
stage.getIcons().add(icon);
stage.setTitle("SpeedReading");
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch();
}
}
This all happened, when i finally got everything set up and all errors fixed, and tried to set a picture as a icon of my window. I have no clue what the error means and cant read/understand it.
