MCL-130Couldn't unpack natives!
There is nothing for us to work on. If your local settings somehow prevent the game from installing there is very little we can do programmatically.
You might have started it with the wrong permissions before (like Administrator) and now the files refuse to be updated because of permission-issues.
You might have an overly protective antivirus/firewall/similar 'protection' thing that needs to be turned off (and sometimes even completely uninstalled) for it to work.
On any 'basic' system the launcher works, if people somehow break their own system, or their access to it there is nothing the launcher can do beyond saying as much as it knows (which is what it does. In the case of the initial ticket here, the downloaded zip is broken, as we check every file after downloading, this is either some overprotective 'thing', a broken harddisk (bad sector for example) or an inability to update the file because of permissions etc etc.
For technical support please use the Mojang Support Center.
Original issue:
Launcher opens up and then when I log in an error message in the Development Console say
Launcher started...
Getting syncinfo for selected version
Queueing downloads
Launching game
Couldn't unpack natives!
java.util.zip.ZipException: error in opening zip file
From MCL-704
Launching game Looking for old natives to clean up... Deleting C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3705141918587 Unpacking natives to C:\Users\jbrac_000\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-3845973197478 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
From MCL-706
Launching game Looking for old natives to clean up... Deleting C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511195048196675 Unpacking natives to C:\Users\Kids\AppData\Roaming\.minecraft\versions\1.6.1\1.6.1-natives-511225440440302 Couldn't unpack natives! java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.zip.ZipFile.<init>(Unknown Source) at net.minecraft.launcher.GameLauncher.unpackNatives(GameLauncher.java:322) at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:165) at net.minecraft.launcher.GameLauncher.onDownloadJobFinished(GameLauncher.java:447) at net.minecraft.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:95) at net.minecraft.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:10) at net.minecraft.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:65) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
