Cannot update my modpack to minecraft 1.5

[Lapito]

Launcher Version: 213

Operating System: Windows 7 Professional 64bits

Java Version: 7 Update 17

Antivirus Program: Avast!

Description of Problem:

I tried to update my modpack to minecrft 1.5 version, but when I launch, it doesn't launch and doesn't do nothing

Error Log:

2013/03/18 00:09:52 [iNFO] ------------------------------------------

2013/03/18 00:09:52 [iNFO] Technic Launcher is starting....

2013/03/18 00:09:52 [iNFO] Launcher Build: 213

2013/03/18 00:09:52 [iNFO] ------------ Startup Parameters ------------

2013/03/18 00:09:52 [iNFO] --------- End of Startup Parameters ---------

2013/03/18 00:09:52 [iNFO] Attempting relaunch with 1024 mb of RAM

2013/03/18 00:09:52 [iNFO] Path to Launcher Jar: C:Users*****DesktopTechnicLauncher.exe

2013/03/18 00:10:00 [iNFO] Starting download of http://skins.technicpack.net/helm/Lapito/100, with 3 tries remaining

2013/03/18 00:10:01 [iNFO] Launcher took: 8981ms to start

2013/03/18 00:10:06 [iNFO] Maximum usable memory detected: 4087 mb

2013/03/18 00:10:07 [iNFO] Mod pack Build: 1.5.0 Minecraft Version: 1.5

2013/03/18 00:10:07 [iNFO] Starting download of http://s3.amazonaws.com/MinecraftDownload/windows_natives.jar, with 3 tries remaining

2013/03/18 00:10:13 [iNFO] Expected MD5: 9406d7d376b131d20c5717ee9fd89a7f Calculated MD5: 9406d7d376b131d20c5717ee9fd89a7f

2013/03/18 00:10:16 [iNFO] Preloaded 0 classes in advance

2013/03/18 00:10:17 [sEVERE] org.spoutcraft.launcher.exceptions.UnknownMinecraftException

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.launch.MinecraftLauncher.getMinecraftApplet(MinecraftLauncher.java:99)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.GameLauncher.runGame(GameLauncher.java:143)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.GameUpdater.runGame(GameUpdater.java:136)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.skin.components.LoginFrame.onEvent(LoginFrame.java:308)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.skin.components.LoginWorker.doInBackground(LoginWorker.java:103)

2013/03/18 00:10:17 [sEVERE] at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.util.concurrent.FutureTask.run(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.lang.Thread.run(Unknown Source)

2013/03/18 00:10:17 [sEVERE] Caused by: java.lang.NoClassDefFoundError: lg

2013/03/18 00:10:17 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method)

2013/03/18 00:10:17 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.launch.MinecraftClassLoader.findClassInjar(MinecraftClassLoader.java:169)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.launch.MinecraftClassLoader.findClass(MinecraftClassLoader.java:143)

2013/03/18 00:10:17 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.launch.MinecraftLauncher.setMinecraftDirectory(MinecraftLauncher.java:110)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.launch.MinecraftLauncher.getMinecraftApplet(MinecraftLauncher.java:86)

2013/03/18 00:10:17 [sEVERE] ... 11 more

2013/03/18 00:10:17 [sEVERE] Caused by: java.lang.ClassNotFoundException: lg

2013/03/18 00:10:17 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.security.AccessController.doPrivileged(Native Method)

2013/03/18 00:10:17 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at org.spoutcraft.launcher.launch.MinecraftClassLoader.findClass(MinecraftClassLoader.java:149)

2013/03/18 00:10:17 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

2013/03/18 00:10:17 [sEVERE] ... 20 more

2013/03/18 00:10:39 [iNFO] Maximum usable memory detected: 4087 mb

[Maxis010]

Nice double topic

Have all of the mods been updated to 1.5? If so then how because FML hasn't been updated yet (recommended build at least)