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  1. Minecraft Launcher
  2. MCL-130

Couldn't unpack natives!

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    • Icon: Bug Bug
    • Resolution: Invalid
    • None
    • 0.5, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7
    • None
    • None
    • MAC OSX 10.7.5 (This is in the new Minecraft Dev Launcher)
      Java 7 I believe
    • Unconfirmed

      (Mojang) Grum (Erik Broes)

      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)
      

        1. bug.txt
          16 kB
          Andrew Cunningham
        2. console.txt
          21 kB
          Ben Cooper

            Unassigned Unassigned
            tapferherz Tapfer Herz
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              Created:
              Updated:
              Resolved: