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java - How to resolve this JNI error when trying to run LWJGL "Hello World"?

I'm trying to run the sample "Hello World" from the LWJGL website

From this link: LWJGL "Getting Started"

I'm trying to do this via the command line, just so I understand the "behind the scenes" a bit better.

I've managed to compile without any errors, but when I try to run the program I'm getting this error:

C:JavaProjectsLearningLWJGL>java -classpath .;./lib/*.jar -Djava.library.path=C:WindowsSystem32 HelloWorld
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.NoClassDefFoundError: org/lwjgl/glfw/GLFWKeyCallback
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    at java.lang.Class.privateGetMethodRecursive(Unknown Source)
    at java.lang.Class.getMethod0(Unknown Source)
    at java.lang.Class.getMethod(Unknown Source)
    at sun.launcher.LauncherHelper.validateMainClass(Unknown Source)
    at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.lwjgl.glfw.GLFWKeyCallback
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 7 more

Any ideas?

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A CLASSPATH entry is either a directory at the head of a package hierarchy of .class files, or a .jar file. If you're expecting ./lib to include all the .jar files in that directory, it won't. You have to name them explicitly.


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