I'm running into an issue when updating to Drupal core 8.8.0. I've removed both the vendor folder and the composer.lock file, as per instructions on this link https://www.drupal.org/node/2700999#s-special-considerations-for-upgrading-to-drupal-880-and-later

I run composer require drupal/core-recommended:^8.8 --update-with-dependencies and I get the following:

  Problem 1
    - Conclusion: don't install drupal/core 8.8.5
    - Conclusion: don't install drupal/core 8.8.4
    - Conclusion: don't install drupal/core 8.8.3
    - Conclusion: don't install drupal/core 8.8.2
    - Conclusion: don't install drupal/core 8.8.1
    - Conclusion: don't install drupal/core 8.8.0
    - Conclusion: don't install drupal/core 8.8.0-rc1
    - Conclusion: don't install drupal/core 8.9.0-beta2
    - Conclusion: don't install drupal/core 8.9.0-beta1
    - Conclusion: don't install drupal/core 8.8.0-beta1
    - Installation request for acquia/lightning 4.0.4 -> satisfiable by acquia/lightning[4.0.4].
    - Conclusion: don't install drupal/core 8.8.0-alpha1
    - Conclusion: don't install drupal/core 8.9.x-dev
    - acquia/lightning 4.0.4 requires drupal/claro ^1.0 -> satisfiable by drupal/claro[1.x-dev, 1.0.0-beta1, 1.0.0-alpha5, 1.0.0-alpha4, 1.0.0-alpha3, 1.0.0-alpha2, 1.0.0-alpha1].
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.x-dev
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.0.0-beta1
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.0.0-alpha5
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.0.0-alpha4
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.0.0-alpha3
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.0.0-alpha2
    - don't install drupal/core 8.8.x-dev|don't install drupal/claro 1.0.0-alpha1
    - Installation request for drupal/core ^8.8.0 -> satisfiable by drupal/core[8.8.0, 8.8.0-alpha1, 8.8.0-beta1, 8.8.0-rc1, 8.8.1, 8.8.2, 8.8.3, 8.8.4, 8.8.5, 8.8.x-dev, 8.9.0-beta1, 8.9.0-beta2, 8.9.x-dev].

At this point, running composer prohibits drupal/core:8.8.0 won't work because I removed drupal/core as per instructions in the link above.

I can successfully update to 8.7.13, so maybe I can settle for that for now. But our team wants to be ready for Drupal 9 and upgrading to 8.8 will make that transition easier, I hear.

Should I update to 8.7.13 first, before attempting to upgrade to 8.8?

EDIT I'm able to update to Drupal 8.8 by removing the vendor folder and composer.lock and removing acquia/lightning. I reinstalled acquia/lightning after Drupal core was added. I am now running into issues when running drush dbupdate.

  • Because you're doing it wrong, please follow the Updating Drupal 8 documentation. – No Sssweat Apr 22 at 1:34
  • I have tried just running composer update drupal/core --with-dependencies. I don't get any errors but it stays at 8.7.9 – kcsting Apr 22 at 2:08
  • And rm composer.lock && rm -rf vendor/ && composer install gives you what? – leymannx Apr 22 at 5:13
  • 1
    It looks like the issue might be with acquia lightning. – mradcliffe Apr 22 at 11:49
  • 1
    @mradcliffe I removed acquia/lightning from composer.json and ran the update again. It worked, but now I'm debugging some database errors that came out when I ran drush dbupdate. – kcsting Apr 23 at 1:24

In your composer.json file (found in the root of your drupal site) find the line "drupal/core": "x.xx" and change it to "drupal/core": "~8.8" and then run composer update drupal/core --with-dependencies

Also, don't forget to run your database updates after! (run drush updb or go to your-drupal-site.com/update.php)

| improve this answer | |
  • I tried your suggestion and it suggested I remove acquia/lightning from my composer.json file. I ran the update again and it worked in composer, but now there are database problems being encountered. – kcsting Apr 23 at 1:29

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