[wp-trac] [WordPress Trac] #13571: Some plugins affected by "Could not remove the old plugin."

[WordPress Trac]

#13571: Some plugins affected by "Could not remove the old plugin."
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 Reporter:  pavelevap        |       Owner:  dd32             
     Type:  defect (bug)     |      Status:  new              
 Priority:  normal           |   Milestone:  3.1              
Component:  Upgrade/Install  |     Version:  3.0              
 Severity:  normal           |    Keywords:  reporter-feedback
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Comment(by GDragoN):

 As dd32 said, on Windows it's very common for system to lock files
 preventing deletion causing the upgrade to fail. If plugin uses fonts from
 own folder for PHP GD library, on Windows, once the PHP loads the font,
 font can't be deleted until the Apache restart. Opening file for editing
 will have similar effect causing the lock of the file. But, there is one
 even worse problem on Vista that can cause files to be locked almost
 randomly when accessed by some of the services used for indexing (doesn't
 happen with Windows 7), and I have similar problems in the short time I
 used Vista at all.

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Ticket URL: <http://core.trac.wordpress.org/ticket/13571#comment:5>
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