[wp-trac] [WordPress Trac] #52114: Critical Error after updating to WordPress from 5.5.3 to 5.6

[WordPress Trac]

#52114: Critical Error after updating to WordPress from 5.5.3 to 5.6
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 Reporter:  theuseful              |       Owner:  (none)
     Type:  defect (bug)           |      Status:  closed
 Priority:  normal                 |   Milestone:
Component:  Application Passwords  |     Version:  5.6
 Severity:  critical               |  Resolution:  invalid
 Keywords:                         |     Focuses:
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Changes (by desrosj):

 * status:  new => closed
 * resolution:   => invalid
 * milestone:  Awaiting Review =>


Comment:

 Hi @theuseful,

 The class mentioned in the log file is found in a new file added in 5.6.
 It seems your update did not complete successfully, most likely because
 the updater had trouble creating the new file.

 The best way forward is to manually replace the files in WordPress with a
 fresh copy from wordpress.org. You can find more detailed instructions in
 the following plugin support article:
 https://wordpress.org/support/article/updating-wordpress/#manual-update.

 I'm going to close this out because this is a support request, which is
 better suited for the [https://wordpress.org/support/forums/ WordPress.org
 Support Forums]. I'm pretty confident that this will fix your issue. But
 if it doesn't, feel free to open a support request.

 If you are able to verify that the file containing this class is indeed
 present and identify specific conditions where that file will not be
 properly included for use, feel free to reopen this with more details.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52114#comment:1>
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