Support » Fixing WordPress » Error After 4.9 – Unable to Edit the Theme & Backup Plugin Stop Working

  • After upading the WP to v 4.9, I’m unable to edit the theme from the Appearance -> Editor page.

    The steps that I did:
    – Updated to 4.9
    – Updated plugins
    – Cleared cached from the plugin
    – Deleted cache files – just in case

    After those steps, I’m unable to edit the .php files (within the editor page area).

    For example, I was working on the footer.php file and after clicking on the “Update File” button, I got:
    “Unable to communicate back with site to check for fatal errors, so the PHP change was reverted. You will need to upload your PHP file change by some other means, such as by using SFTP.”

    iThemes Security plugin stop working as well, it says that it doesn’t have permission to the backend to do the backup :-/ Everything else with the plugin is working after the update. The only issue is with the backup feature. I disabled, deleted, and re-installed the plugin; still experiencing the same issue.

    I had to revert back to the previous version so that I can work on the site and have the backup running on a daily basis.

    Please advise what I can do so that I can edit the theme (php files) from the Editor page.

    Thank you.

Viewing 15 replies - 1 through 15 (of 24 total)
  • Also, while I’m here, somehow even though I am editing a child theme, all the files of the parent theme are pulled into the list on the right.

    I experienced the same issue on two live sites (1 multisite and 1 regular) as well as a local test environment.

    I also tried disabling all plugins, then attempting edits. That did not work either.

    EDIT: I was completely unable to edit child theme files without ftp’ing to the server. After uploading, the site ran fine with the edits in place.

    Same here. It is not possible anylonger to edit and save any file even if valid php code is used. They all produce

    “Unable to communicate back with site to check for fatal errors, so the PHP change was reverted. You will need to upload your PHP file change by some other means, such as by using SFTP”

    The wp 4.9 wrecked this ability. Too bad !

    mdotk: thanks for sharing that info. Any other solution you have tried without installing another plugin? I like to keep the # of installed plugins to a minimum.

    No, but I have used that plugin on other sites for a long time and noticed that those sites were not affected by this new issue in 4.9

    I see, thanks for sharing!

    +1

    Check out this thread, someone seems to be checking it out: https://wordpress.org/support/topic/cant-edit-main-theme-php-files-after-upgrading-to-4-9/

    Unfortunately I also have problems since updating to WP 4.9

    It is not possible any more to open the editor of Optimize Press.
    Pages seem to work but no editing possible at all.

    And the HELP menue on the upper right in WP is also not willing to open anymore
    once I pressed the button to open the Optimize Press editor.

    So I am hanging here.

    I did replace my WP Database in order to check on that with one from 2 days ago.
    It did not fix the problem.

    Any solution..?

    @muswaki follow this thread

    You can edit the file.php and remove some lines of code to make it work again until they find the cause.

    its described here https://wordpress.org/support/topic/cant-edit-main-theme-php-files-after-upgrading-to-4-9/

    I have the same issue with OptimizePress. The 4.9 update totally disables Live Editor. Not even their Support option will open upon clicking.

    Restoring to the prior version of WordPress fixes the problem temporarily. I have opened a ticket with the OP support desk.

    How Did you restore the WP 4.8.3 Version. I did replace the database with one from just before the Update. But this did not resolve the issue.
    A fresh ftp backup I did not have due to too many changes inbetween.

    Is there an Option to revert back in WP to 4.8.3..?

    Dont downgrade you just need to edit one file described in this thread!

    https://wordpress.org/support/topic/cant-edit-main-theme-php-files-after-upgrading-to-4-9/

    @muswaki: I always backup the files and database before updating the WP core. So I replaced the latest database and files to the previous version.

    Yes… I usually do this too.

    I have a backup but in the meantime I had a few minor but valuable amendments to one OP page. And I don’t want to lose that.

    I am kicking out OP now and replacing LP’s with new pages on Insta Suite.

    Thanx 4 your feed back…

Viewing 15 replies - 1 through 15 (of 24 total)
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