title: iOS Over-the-Air mobile Ad-Hoc downloading: "Could not Extract Archive" error
body: <p>I am trying to download my application over the web on my iOS 4.2 device.</p>
  
  <p>I have verified that the application I have built installs and runs correctly on my device through XCode - i.e. The application should be built and signed correctly. I package it through "Build and Archive" and "Share..." it - then upload the .plist and .ipa files to my server, which I have the correct links to, etc..etc...</p>
  
  <p>When I try to install it (over-the-air), it says "Waiting...", then "Loading..." then "Installing...", then I get an error: "Unable to Download 'myAppName'" - (Done) (Retry).</p>
  
  <p>Checking the console on my iPhone, I get the following:</p>
  
  <blockquote>
    <p>Sat Jan  8 18:30:50 unknown
    installd[26090] : 2ff66000
    extract_package: Could not extract
    archive Sat Jan  8 18:30:50 unknown
    installd[26090] : 2ff66000
    stage_package: Could not extract
    /var/tmp/install_staging.ReUsa4/foo.zip
    to /var/tmp/install_staging.ReUsa4/foo_extracted
    Sat Jan  8 18:30:50 unknown
    installd[26090] : 2ff66000
    MobileInstallationInstall: Could not
    stage the package Sat Jan  8 18:30:50
    unknown installd[26090] :
    2ff66000 handle_install: API failed
    Sat Jan  8 18:30:50 unknown
    com.apple.itunesstored[26087]
    : MobileInstallationInstall:
    failed with -1</p>
  </blockquote>
  
  <p>Looks like a bunch of problems "Extracting Archive". Anyone know what this means?
  Any ideas???</p>
  
  <p><strong>UPDATE:</strong> I the Diawi web site to install this - and it worked fine. So, it's not a code signing issue.</p>