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Whenever I update anything on my local WordPress development site, whether it be plugins, themes, or the WP 3.7.1 update, I get this error message:

Unpacking the update…

The package could not be installed.: PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature

Installation Failed

I'm using WampServer 2.4, with Apache 2.0.63, PHP 5.2.11, and MySQL 5.0.88.

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    Are you running low on space on the partition/drive where you're trying to do the unzip? Details – Pat J Oct 30 '13 at 21:17
  • Also... Have you tried updating Apache & PHP version in Wamp? I'm not receiving any errors with WP 3.7.1 on Wamp with Apache 2.2.6 & PHP 5.3... – Courtney Ivey Oct 31 '13 at 4:54
  • @PatJ No, I have plenty of space on my drive. – Daniel Harris Oct 31 '13 at 12:38
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I had same issue today on my new server. After a while i realize that zip/unzip is not active in my apache/php . When i recompile my apache with zip extension , problem solved.

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