Title: Migration failed
Last modified: June 16, 2026

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# Migration failed

 *  [fanny04](https://wordpress.org/support/users/fanny04/)
 * (@fanny04)
 * [2 weeks ago](https://wordpress.org/support/topic/migration-failed-61/)
 * Dear support, I ve been asked to make a migration, but is was not successfull
   100 %, only 500 on 560, and I cannot open events any more. I cannot edit them
   neither add one.
 * Can you help on this ?
 * Thankes
 * Fanny
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmigration-failed-61%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Plugin Support [Darian](https://wordpress.org/support/users/d0153/)
 * (@d0153)
 * [1 week, 5 days ago](https://wordpress.org/support/topic/migration-failed-61/#post-18941040)
 * Hi [@fanny04](https://wordpress.org/support/users/fanny04/)
 * Thanks for reaching out. Let me assist you with this one.
 * Could you double check if you’re using the latest versions of our plugins? Once
   done, check if that resolves the issue.
 * Alternatively, if you have created a backup before your the migrationn, I recommend
   you restore that for now if possible. Once done, please try cloning your website
   and run a migration from there first by following the steps below:
    1. Update to the latest versions of The Events Calendar.
    2. Remove any un-needed draft events and empty the Trash.
    3. Activate only our plugins and use the 2021 theme.
    4. Make sure server-side caching is disabled temporarily while you’re migrating
       your events.
    5. Install and activate the [Code Snippets](https://wordpress.org/plugins/code-snippets/)
       plugin.
    6. Add [this snippet](https://d.pr/n/K8WwGn) and run it once (be sure it does not
       stay activated).
    7. Go to Events > Settings > Upgrades and go through the migration process.
 * Let me know how it goes.
 *  Plugin Support [Darian](https://wordpress.org/support/users/d0153/)
 * (@d0153)
 * [1 week, 3 days ago](https://wordpress.org/support/topic/migration-failed-61/#post-18943345)
 * Hi there,
 * It appears that we haven’t heard back from you in a while, so I’ll assume that
   the matter has been resolved. If you need any more help, feel free to start a
   new thread and we’ll be happy to assist you.
 *  Thread Starter [fanny04](https://wordpress.org/support/users/fanny04/)
 * (@fanny04)
 * [1 week ago](https://wordpress.org/support/topic/migration-failed-61/#post-18945040)
 * Thank you for your answer, and Sorry I dont have time, I still have the pb and
   will work on it today or tomorrow, I ll let you know
 *  Thread Starter [fanny04](https://wordpress.org/support/users/fanny04/)
 * (@fanny04)
 * [1 week ago](https://wordpress.org/support/topic/migration-failed-61/#post-18945793)
 * Hello, I’ve successfully deleted drafts and emptied the trash, stopped caching
   on 02switch, activated 2021, verified the version (version 6.16.4.1), and deactivated
   all plugins except TheEventCalendar, snippet ok, but I’m still stuck in the ‘
   enable preview’ loop. I’m launching the migration, but it gets stuck at 567 events
   in preview; 48 remain. However, I’ve tested all the plugins, and the one preventing
   me from adding and modifying events is Adminisize. I can now open the event. 
   So, the only remaining problem is the migration.
    -  This reply was modified 1 week ago by [fanny04](https://wordpress.org/support/users/fanny04/).
 *  Plugin Support [Darian](https://wordpress.org/support/users/d0153/)
 * (@d0153)
 * [4 days, 16 hours ago](https://wordpress.org/support/topic/migration-failed-61/#post-18948300)
 * Hi [@fanny04](https://wordpress.org/support/users/fanny04/),
 * Thanks for your message.
 * Just to confirm, did you try running the migration while only our plugins were
   active?
 * If not, could you please temporarily deactivate all other plugins and leave only
   The Events Calendar plugins active, then run the migration again and see if the
   issue persists?
 * This will help determine whether the issue is being caused by a conflict with
   another plugin on the site.
 * Please let me know how it goes, and I’ll be happy to assist further.
 *  Plugin Support [Darian](https://wordpress.org/support/users/d0153/)
 * (@d0153)
 * [2 days, 20 hours ago](https://wordpress.org/support/topic/migration-failed-61/#post-18949773)
 * Hi [@fanny04](https://wordpress.org/support/users/fanny04/)
 * I hope you’re doing well. I just wanted to touch base and check in with you. 
   It’s been a little while since we’ve heard from you. I was just curious if you
   had the chance to try out the recommendation provided above.
 * Let us know if there’s anything we can assist you with.
 *  Thread Starter [fanny04](https://wordpress.org/support/users/fanny04/)
 * (@fanny04)
 * [18 hours, 21 minutes ago](https://wordpress.org/support/topic/migration-failed-61/#post-18951314)
 * Dear Dorian, I apologize for the late answer. I have deactivated all other plugins,
   but I am still stuck on ” Revenez plus tard pour la prochaine étape de la migration(
   come back later). 579 évènements en prévisualisation. 40 restants (missing 40)
   
   Réessayer (try again). If I click on try again, the same occurs.
 * Fanny

Viewing 7 replies - 1 through 7 (of 7 total)

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 * ![](https://ps.w.org/the-events-calendar/assets/icon-256x256.gif?rev=2516440)
 * [The Events Calendar](https://wordpress.org/plugins/the-events-calendar/)
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 * 7 replies
 * 2 participants
 * Last reply from: [fanny04](https://wordpress.org/support/users/fanny04/)
 * Last activity: [18 hours, 21 minutes ago](https://wordpress.org/support/topic/migration-failed-61/#post-18951314)
 * Status: not resolved