I'm going to pull my hair out if I stare at this problem any longer. I've seen the similar questions and tried everything but I can't fix this issue with module dependency versions.

I'm using Composer require drupal/<module_name> and I've tried including specific versions too but that hasn't worked. I see that the current version number isn't being displayed at the end of the error message which makes me wonder whether the system knows what version is even installed?

I also don't understand how so many modules can be asking for different versions of the same dependency. How can you possibly resolve that :|

I should also add that I was in the process of converting manually installed modules into Composer controlled dependencies. I'm not sure if that would make a difference.

It really seems to me that Drupal doesn't know what versions of Modifiers and Paragraphs are installed but I don't see how.

The error

  • 1
    I'd always start with rm composer.lock && rm -rf vendor/ && composer install -n on a local copy of the site, followed by drush cr && drush -y updb.
    – leymannx
    Mar 28, 2020 at 16:24
  • Also check that composer (the tool) itself is up to date!
    – vrijdenker
    Mar 28, 2020 at 17:16
  • Thanks for the suggestions. I tried the above but even after using composer clear-cache it still shows "cloning XXX from cache" which is odd. The update still shows the "unresolved dependency" messages and the update looks like this: > [notice] Update started: paragraphs_library_update_8004 > [error] Cannot add field paragraphs_library_item_revision_field_data.label: field already exists. > [error] Update failed: paragraphs_library_update_8004 [error] Update aborted by: paragraphs_library_update_8004 [error] Finished performing updates. Mar 28, 2020 at 17:51
  • I've just edited the question above with updated details Mar 29, 2020 at 9:34

1 Answer 1


So, the system couldn't decide what version of the modules were installed. Here is a fix:


Basically, install Git Deploy module to add versioning details to modules .info files.

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