Title: [Plugin: MailPress] upgrade failed
Last modified: August 19, 2016

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# [Plugin: MailPress] upgrade failed

 *  [podictionary](https://wordpress.org/support/users/podictionary/)
 * (@podictionary)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/)
 * Attempted to upgrade via plugins page and got the following
 * Incompatible archive: PCLZIP_ERR_BAD_FORMAT (-10) : Invalid archive structure
 * Plugin upgrade Failed

Viewing 11 replies - 1 through 11 (of 11 total)

 *  [scottnath](https://wordpress.org/support/users/scottnath/)
 * (@scottnath)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056181)
 * I’m getting the same thing.
 *  [davethepak](https://wordpress.org/support/users/davethepak/)
 * (@davethepak)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056186)
 * I do not think you can use the automatic upgrade feature for this plugin, due
   to the fact that there are multiple folders in the archive.
 * I too have to upgrade my mailpress, but am planning on doing it this way:
    1. deactivate all the mailpress plugins
    2. delete them via ftp
    3. unzip folders I want from plugin package
    4. upload the specific modules I want
    5. Activate the modules one at a time
 * I have not tested this yet, but hope it works…
 * ~ Dave
 *  [alndavis](https://wordpress.org/support/users/alndavis/)
 * (@alndavis)
 * [16 years, 12 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056284)
 * I am seeing the same error for every plugin I attempt to upgrade through the 
   wordpress admin. I am able to manually upgrade plugins through cPanel file manager
   by uploading the zip and then extracting the files, but if I try the automatic
   upgrade I get the error:
 * > Incompatible archive: PCLZIP_ERR_BAD_FORMAT (-10) : Invalid archive structure
 *  [arzlonga](https://wordpress.org/support/users/arzlonga/)
 * (@arzlonga)
 * [16 years, 11 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056285)
 * I updated my Wp from 2.7.1 to 2.8 and started getting this error too. I cant 
   auto update my plugins.
 *  [Breigh](https://wordpress.org/support/users/breigh/)
 * (@breigh)
 * [16 years, 11 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056286)
 * I got the same error with every attempt to upgrade plugins and when I try to 
   upgrade to 2.8
 *  [glitterkill](https://wordpress.org/support/users/glitterkill/)
 * (@glitterkill)
 * [16 years, 11 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056287)
 * Same here… Was able to upgrade to 2.8 via the auto upgrade; but after that I 
   have not been able to autoupdate anything else and receive the same error as 
   the OP.
 *  [Universal1](https://wordpress.org/support/users/universal1/)
 * (@universal1)
 * [16 years, 11 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056288)
 * Same here, upgraded to 2.8 and am getting the same error message when trying 
   to upgrade plugins.
 *  [mkirkwag](https://wordpress.org/support/users/mkirkwag/)
 * (@mkirkwag)
 * [16 years, 11 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056289)
 * Same things happen with me – I’m going to restore to the old version
 *  [mkirkwag](https://wordpress.org/support/users/mkirkwag/)
 * (@mkirkwag)
 * [16 years, 11 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056290)
 * Found a fix in this thread [http://wordpress.org/support/topic/278487?replies=26](http://wordpress.org/support/topic/278487?replies=26)
   
   You need to load a new version of http.php to your wp-includes folder. It’s a
   simple download from that post.
 *  [pommie](https://wordpress.org/support/users/pommie/)
 * (@pommie)
 * [16 years, 8 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056305)
 * In my case deactivating the core control plugin solved all my woes
 *  [arena](https://wordpress.org/support/users/arena/)
 * (@arena)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056316)
 * with mailpress, do not use automatic upgrade.
 * see readme.txt of last release
 * new release: MailPress 4.0.1
    new documentation : [http://www.mailpress.org](http://www.mailpress.org)
   a forum : [http://groups.google.com/group/mailpress](http://groups.google.com/group/mailpress)

Viewing 11 replies - 1 through 11 (of 11 total)

The topic ‘[Plugin: MailPress] upgrade failed’ is closed to new replies.

 * 11 replies
 * 11 participants
 * Last reply from: [arena](https://wordpress.org/support/users/arena/)
 * Last activity: [16 years, 7 months ago](https://wordpress.org/support/topic/plugin-mailpress-upgrade-failed/#post-1056316)
 * Status: not resolved

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