launcher wont load texture packs then didnt open packs,stuck at mojang logo

[als990]

Launcher Build: 439

Selected Pack: Hexxit

Stack Trace: Exception: RuntimeException Message: Minecraft not installed for this pack: InstalledPack{info=SolderPackInfo{name='hexxit', display_name='Hexxit', url='null', icon_md5='fb51fd408d5d3bc7eba8d9a820ab555c', logo_md5='1426f5b19df42eab2cabbaa34823c8c9', background_md5='a99b0c0eb00ac657d29eb9e1f9086033', recommended='1.0.10', latest='2.0.1', builds=[1.0.0, 1.0.1, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 2.0.0, 2.0.1], solder=net.technicpack.launchercore.restful.solder.Solder@4cd297c0}, name='hexxit', platform=false, build='recommended', directory='%MODPACKS%\hexxit'} Trace: net.technicpack.launchercore.launch.MinecraftLauncher.buildClassPath(MinecraftLauncher.java:199) net.technicpack.launchercore.launch.MinecraftLauncher.buildCommands(MinecraftLauncher.java:107) net.technicpack.launchercore.launch.MinecraftLauncher.launch(MinecraftLauncher.java:56) org.spoutcraft.launcher.InstallThread.run(InstallThread.java:74)

System Information: Operating System: Mac OS X Operating System Version: 10.6.8 Operating System Architecture: x86_64 Java version: 1.6.0_65 64 bit Total Memory: 81 MB Max Memory: 123 MB Memory Free: 33 MB CPU Cores: 2