celticavion

i keep getting java.util.zip.ZipException: invalid literal/length code at java.util.zip.InflaterInputStream.read(Unknown Source) at java.io.BufferedInputStream.fill(Unknown Source) at java.io.BufferedInputStream.read1(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at net.technicpack.launchercore.util.ZipUtils.unzipEntry(ZipUtils.java:104) at net.technicpack.launchercore.util.ZipUtils.unzipFile(ZipUtils.java:150) at net.technicpack.launchercore.util.ZipUtils.unzipFile(ZipUtils.java:114) at net.technicpack.launchercore.install.ModpackInstaller.installOldForgeLib(ModpackInstaller.java:105) at net.technicpack.launchercore.install.ModpackInstaller.installOldForgeLibs(ModpackInstaller.java:94) at net.technicpack.launchercore.install.ModpackInstaller.installPack(ModpackInstaller.java:60) at org.spoutcraft.launcher.InstallThread.run(InstallThread.java:50)