Title: PCLZIP_ERR_BAD_FORMAT (-10)
Last modified: August 21, 2016

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# PCLZIP_ERR_BAD_FORMAT (-10)

 *  Resolved [Bob33](https://wordpress.org/support/users/bob33/)
 * (@bob33)
 * [13 years ago](https://wordpress.org/support/topic/pclzip_err_bad_format-10/)
 * Hi all,
 * I’m getting this message when installing plugins from ‘add new’ or attempting
   to reinstall WP from dashboard:
 * “Downloading install package from [http://downloads.wordpress.org/plugin/backwpup.3.0.12.zip…](http://downloads.wordpress.org/plugin/backwpup.3.0.12.zip…)
 * Unpacking the package…
 * The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find
   End of Central Dir Record signature”
 * However – I can install what I would consider ‘small’ plugins with no problems
   eg reveal id, hello dolly. It only seems to occur on ‘larger’ plugins – eg WP
   SEO, BackWPup. I can also install plugins manually via FTP.
 * I’ve read replies to this issue and can’t see any of the problems mentioned causing
   this:
    Got stacks of memory 128MB Stacks of disk space File permissions are good.
   I’ve reinstalled latest WP from a fresh download
 * Support at my (shared) hosting have checked server settings – although I’m still
   thinking this may be the most likely cause.
 * Not sure what else to try. Any ideas welcomed 🙂

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Lindsay T](https://wordpress.org/support/users/froginapuddle/)
 * (@froginapuddle)
 * [13 years ago](https://wordpress.org/support/topic/pclzip_err_bad_format-10/#post-3765197)
 * This error is ‘usually’ a disk space issue.
 * Particularly as you say it only occurs on ‘larger’ plugins. So it definitely 
   points to the disk space as the likely problem.
 * Your host may be running out of space on their hard drive. Even if you are on
   a host with ‘unlimited space’, hard drives are not actually unlimited and do 
   run out of space.
 * So, ask your host =)
 *  Thread Starter [Bob33](https://wordpress.org/support/users/bob33/)
 * (@bob33)
 * [13 years ago](https://wordpress.org/support/topic/pclzip_err_bad_format-10/#post-3765198)
 * Thanks froginapuddle
    According to my CP there was plenty of space, but anything
   is possible. Today, mysteriously, after more talks with hosting support, the 
   problem seems to have resolved. So don’t really know what caused or fixed it!

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘PCLZIP_ERR_BAD_FORMAT (-10)’ is closed to new replies.

## Tags

 * [wp3.51](https://wordpress.org/support/topic-tag/wp3-51/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [Bob33](https://wordpress.org/support/users/bob33/)
 * Last activity: [13 years ago](https://wordpress.org/support/topic/pclzip_err_bad_format-10/#post-3765198)
 * Status: resolved

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