Minecraft Forums

My minecraft launcher crashes after it completely loads. I am running Mac OsX and im on the minecraft_legacy.dmg launcher.

Ive tried to redownload the launcher many times but nothing works.

It comes back with the error message -

Exception in thread "main" java.lang.NoClassDefFoundError: net/minecraft/client/main/Main
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.main.Main
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

if you know how to fix PLEASE comment below.

Update your Java or use the new launcher.