After selecting TEKKIT and pressing the 'Launch' button on the launcher window, the Update field reads: "100% No update for tekkitmain found". There is no further activity afterward. the Launcher Console reads as follows:
Loaded face
Starting download of http://skins.technicpack.net/helm/Keflin_Arivaen/100, with 3 tries remaining
org.spoutcraft.launcher.exceptions.UnknownMinecraftException
at org.spoutcraft.launcher.launch.MinecraftLauncher.getMinecraftApplet(MinecraftLauncher.java:99)
at org.spoutcraft.launcher.GameLauncher.runGame(GameLauncher.java:133)
at org.spoutcraft.launcher.GameUpdater.runGame(GameUpdater.java:81)
at org.spoutcraft.launcher.skin.LoginFrame.onEvent(LoginFrame.java:300)
at org.spoutcraft.launcher.skin.LoginWorker.doInBackground(LoginWorker.java:102)
at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at org.spoutcraft.launcher.launch.MinecraftClassLoader.findClassInjar(MinecraftClassLoader.java:169)
at org.spoutcraft.launcher.launch.MinecraftClassLoader.findClass(MinecraftClassLoader.java:143)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.spoutcraft.launcher.launch.MinecraftLauncher.setMinecraftDirectory(MinecraftLauncher.java:110)
at org.spoutcraft.launcher.launch.MinecraftLauncher.getMinecraftApplet(MinecraftLauncher.java:86)
... 11 more
There is no more text displayed in the console window, and the launcher remains in this state no matter the length of time given it. My machine stats:
CPU: Intel Core i7-3930K
RAM: 32 GB
OS: Windows 7 64-bit
JRE: 7u21 (latest version) - both 32 & 64-bit
BitDefender running with permission for this game allowed and Game Mode set to Auto
Windows Firewall set to allow this game to pass.
As a note: I can run Vanilla Minecraft and Classic Tekkit. I have not tried the others.
