Forge not setting up environment! saying fatal error occurred!

Forge not loading after install!

here is the report!

2013-04-05 17:20:14 [iNFO] [ForgeModLoader] Forge Mod Loader version 5.1.8.611 for Minecraft 1.5.1 loading

2013-04-05 17:20:14 [iNFO] [ForgeModLoader] Java is Java HotSpot 64-Bit Server VM, version 1.6.0_37, running on Mac OS X:x86_64:10.6.8, installed at /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home

2013-04-05 17:20:14 [FINE] [ForgeModLoader] Java classpath at launch is /Users/jonahdaniel8/Downloads/Minecraft.app/Contents/Resources/Java/MinecraftLauncher.jar:

2013-04-05 17:20:14 [FINE] [ForgeModLoader] Java library path at launch is /Users/jonahdaniel8/Downloads/Minecraft.app/Contents/Resources/Java:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources:.:/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java

2013-04-05 17:20:14 [FINE] [ForgeModLoader] Enabling runtime deobfuscation

2013-04-05 17:20:14 [FINEST] [ForgeModLoader] All core mods are successfully located

2013-04-05 17:20:14 [FINEST] [ForgeModLoader] Discovering coremods

2013-04-05 17:20:14 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar

2013-04-05 17:20:14 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar

2013-04-05 17:20:20 [FINEST] [ForgeModLoader] Download complete

2013-04-05 17:20:20 [iNFO] [ForgeModLoader] Download complete

2013-04-05 17:20:20 [FINEST] [ForgeModLoader] Library file argo-small-3.2.jar was downloaded and verified successfully

2013-04-05 17:20:20 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar

2013-04-05 17:20:20 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar

2013-04-05 17:22:23 [FINEST] [ForgeModLoader] Download complete

2013-04-05 17:22:23 [iNFO] [ForgeModLoader] Download complete

2013-04-05 17:22:23 [FINEST] [ForgeModLoader] Library file guava-14.0-rc3.jar was downloaded and verified successfully

2013-04-05 17:22:23 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar

2013-04-05 17:22:23 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar

2013-04-05 17:22:36 [FINEST] [ForgeModLoader] Download complete

2013-04-05 17:22:36 [iNFO] [ForgeModLoader] Download complete

2013-04-05 17:22:36 [FINEST] [ForgeModLoader] Library file asm-all-4.1.jar was downloaded and verified successfully

2013-04-05 17:22:36 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar

2013-04-05 17:22:36 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar

2013-04-05 17:24:46 [FINEST] [ForgeModLoader] Download complete

2013-04-05 17:24:46 [iNFO] [ForgeModLoader] Download complete

2013-04-05 17:24:46 [FINEST] [ForgeModLoader] Library file bcprov-jdk15on-148.jar was downloaded and verified successfully

2013-04-05 17:24:46 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.1.zip

2013-04-05 17:24:46 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.1.zip

2013-04-05 17:24:58 [FINEST] [ForgeModLoader] Download complete

2013-04-05 17:24:58 [iNFO] [ForgeModLoader] Download complete

2013-04-05 17:24:58 [FINEST] [ForgeModLoader] Library file deobfuscation_data_1.5.1.zip was downloaded and verified successfully

2013-04-05 17:24:58 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar

2013-04-05 17:24:58 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] There were errors during initial FML setup. Some files failed to download or were otherwise corrupted. You will need to manually obtain the following files from these download links and ensure your lib directory is clean.

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.1.zip

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/scala-library.jar

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] <===========>

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] The following is the errors that caused the setup to fail. They may help you diagnose and resolve the issue

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] The downloaded file scala-library.jar has an invalid checksum 126b6cd85c5f7e36f19cafdbd31dc914c61b3419 (expecting 458d046151ad179c85429ed7420ffb1eaf6ddf85). The download did not succeed correctly and the file has been deleted. Please try launching again.

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] <<< ==== >>>

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] The following is diagnostic information for developers to review.

2013-04-05 17:26:32 [sEVERE] [ForgeModLoader] Error details

java.lang.RuntimeException: The downloaded file scala-library.jar has an invalid checksum 126b6cd85c5f7e36f19cafdbd31dc914c61b3419 (expecting 458d046151ad179c85429ed7420ffb1eaf6ddf85). The download did not succeed correctly and the file has been deleted. Please try launching again.

at cpw.mods.fml.relauncher.RelaunchLibraryManager.performDownload(RelaunchLibraryManager.java:613)

at cpw.mods.fml.relauncher.RelaunchLibraryManager.downloadFile(RelaunchLibraryManager.java:532)

at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:165)

at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)

at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:259)

at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:229)

at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)

at net.minecraft.Launcher.replace(Launcher.java:134)

at net.minecraft.Launcher$1.run(Launcher.java:78)

2013-04-05 17:30:14 [iNFO] [sTDERR] Exception in thread "Thread-8" java.lang.RuntimeException: java.lang.RuntimeException: A fatal error occured and FML cannot continue

2013-04-05 17:30:14 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:192)

2013-04-05 17:30:14 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:259)

2013-04-05 17:30:14 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:229)

2013-04-05 17:30:14 [iNFO] [sTDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)

2013-04-05 17:30:14 [iNFO] [sTDERR] at net.minecraft.Launcher.replace(Launcher.java:134)

2013-04-05 17:30:14 [iNFO] [sTDERR] at net.minecraft.Launcher$1.run(Launcher.java:78)

2013-04-05 17:30:14 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: A fatal error occured and FML cannot continue

2013-04-05 17:30:14 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:261)

2013-04-05 17:30:14 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)

2013-04-05 17:30:14 [iNFO] [sTDERR] ... 5 more