I have not used Java in a while and thought I might try LWJGL with OpenGL and GLFW. I am using Apache Maven as a Build System. It lets me compile the program, but when I run it, it says:
Exception in thread "main" java.lang.NoClassDefFoundError: org.lwjgl/glfw/GLFW at com.OpenGLTest.app.Main.main(Main.java:25) Caused by: java.lang.ClassNotFoundException: org.lwjgl.glfw.GLFW at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java.641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525) ... 1 more My code is:
// Main.java package com.OpenGLTest.app; import org.lwjgl.*; import org.lwjgl.glfw.*; import org.lwjgl.opengl.*; import org.lwjgl.system.*; import java.nio.*; import static org.lwjgl.glfw.Callbacks.*; import static org.lwjgl.glfw.GLFW.*; import static org.lwjgl.opengl.GL11.*; import static org.lwjgl.system.MemoryStack.*; import static org.lwjgl.system.MemoryUtil.*; public class Main { private static long window; private static final int WIDTH = 800; private static final int HEIGHT = 600; private static final String TITLE = "OpenGL Window"; public static void main(String[] args) { // CHECK if (!glfwInit()) { System.err.println("ERROR: GLFW IS NOT INSTALLED"); System.exit(-1); } glfwInit(); glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6); glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); glfwWindowHint(GLFW_VISIBLE, 0); glfwWindowHint(GLFW_RESIZABLE, 0); window = glfwCreateWindow(WIDTH, HEIGHT, TITLE, NULL, NULL); if (window == NULL) { System.err.println("ERROR: FAILED TO CREATE GLFW WINDOW"); } glfwMakeContextCurrent(window); glfwShowWindow(window); } } My LWJGL version is 3.3.3 My JRE is 17
I am sorry if the answer is obvious. Somehow the only kinda answer I found on the internet is http://forum.lwjgl.org/index.php?topic=6994.0:
https://stackoverflow.com/questions/34413/why-am-i-getting-a-noclassdeffounderror-in-java
How to solve this entirely depends on how you invoke the java command, whether you use an >IDE and which one you use, whether you use the Java 9+ Module System or the classpath and >whether you use a Java build system (like Maven, Gradle, Ant+Ivy).
