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migration questions

Posted: July 26, 2019 at 1:53 pm

Gail DeLuca

July 26, 2019 at 1:53 pm

Think there is some confusion, don’t know if us or you.
Exerpt from documentation :

Using your SFTP / FTP client, transfer the old plugin folders for Event Espresso along with any add-ons to this location:


Step 4 โ€“ Unzip your new software and upload to your site
Now you can upload the updated software which is on your computer as zip files. Browse to the location of those files and then unzip (ie. expand) them. Then transfer the each unzipped plugin folder to the WordPress plugins folder:


Here is an example of the location for the Event Espresso 3 core plugin:


Allow your SFTP / FTP client to complete all transfers and if there are any errors then try the transfer again.

Step 5 โ€“ Reactivate the software for Event Espresso 4
Return to your WordPress plugins screen and refresh it and then re-activate Event Espresso 3 along with any add-ons that may have been uploaded.

Are we transferring or just copying the old files to the backup file?
re we uploading the whole event-espresso-core-reg folder or all individual files & foolders?
Are we activating 4 or re-activating 3 ???

Have completed file uplaods, website completly fails when trying to activet EE in plugins screen.


  • Support Staff

July 26, 2019 at 3:19 pm

Hi Gail,

My apologies, that documentation is confusing! There has been some kind of mix up and I think parts of the docs have been merged incorrectly there, we’ll get it fixed, but it makes things as clear as mud right now ๐Ÿ™‚ I’ve added a note to get that updated but in the meantime, let’s get you up and running!

First, some clarification….

EE3 (and its add-ons) are not compatible with EE4 at all. You can not run both at the same time and you can not use EE3 add-ons with EE4, period.

The reason I want to make that totally clear, is anywhere in the documentation that you read and it may sound like you need something from EE3 to work with EE4, or both EE3 and EE4 activated and so on, is wrong, that simply will not work.

Are we transferring or just copying the old files to the backup file?

What the docs above are trying to get you to do, is back up Event Espresso 3 and any of the EE3 add-ons you have installed into a separate directory and then install EE4 and any of its add-on’s you want/need.

So, knowing that, if I said to you to go to /wp-content/plugins/ and move any of the EE3 directories to /wp-content/event-espresso-backup/ (or whatever directory you prefer) do you follow what you need to do or need that broken down? Where you place them is up to you, it can be local, or in the folder above, EE4 does not use them.

Note – you can actually delete Event Espress 3 and all of the add-ons from the site, but its good practice to backup first in case you need to switch back quickly (although that would mean your on a live site and you should not be testing this live), or if you have customizations you need to work through and figure out what/how they were done in EE3 to then apply to EE4.

So at this point, you have moved EE3 out of way, to wherever you prefer just for safe keeping, and your ready to start installing EE4, correct?

Are we uploading the whole event-espresso-core-reg folder or all individual files & foolders?

I’ll answer your question, but I highly advise you don’t actually do this via FTP.

The event-espresso-core-reg directory holds ALL of the EE files, that directory goes in /wp-content/plugins/

So you’ll have /wp-content/plugins/event-espresso-core-reg and then all of the individual files and folders sit within that, but…

My recommendation is NOT to install that through FTP, it’s prone to errors and with the number of files being transferred wth seen instances of dropouts and missing files, it just causes more headache.

If you have EE4 installed on the site right now, go to Dashboard -> Plugins, find EE4 and delete it.

Now go to Dashboard -> Plugins -> Add new -> Upload plugin.

Select the file you download from your account page and upload.

Let WordPress do the hard work for you with the above.

Now you’ll have Event Espresso 4 in the plugin menu, correct?

Make sure Event Espresso 3 is de-activated and none of the EE3 add-ons are active (at this point if you moved them earlier they shouldn’t be shown, but if they are there, make sure they are inactive).

Now active ONLY Event Espresso 4, none of its add-ons, just the main core plugin.

Does it work then?

This gets you to a level playing field that we can work from and get your additional add-ons installed/actived but point being you want only EE4 installed and actived and EE3 (plus its add-ons) moved out of the way for the time being or de-activated.

Gail DeLuca

July 26, 2019 at 4:06 pm

Many thanks for this will work on it some more. Had file size issue so used FTP. Will follow your steps/suggestions to get it uploaded vie WP & try again. Will get back to you if site falls over next time. Thanks again. J


  • Support Staff

July 29, 2019 at 2:31 am

Unfortunately, filesize issues are getting a little common as the default upload_max_filesize and post_max_size is often 4MB so you may need to up both of those values a little on your server

Many hosts provide options in your control panel to do it but if not they’ll usually do it for you if you contact them.

Please do let me know if you run into further problems.

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Support forum for Event Espresso 3 and Event Espresso 4.
Documentation for EE3 and EE4
Documentation for Event Espresso 3 Documentation for Event Espresso 4

Status: closed

Updated by  Tony 10 months, 1 week ago ago

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