Problem/Motivation

When working with Gin and gin_lb, I see the following error when trying to configure a block in layout builder: `Error: Call to a member function removeClass() on array in claro_preprocess_field_multiple_value_form() (line 1025 of /var/www/docroot/core/themes/claro/claro.theme).` This is caused by setting '#attributes' to an array rather that an object of type \Drupal\Core\Template\Attribute in gin_lb_preprocess_field_multiple_value_form.

CommentFileSizeAuthor
#10 2025-10-05_18-15.png313.98 KBmykola dolynskyi
#9 gin_lb_header_attribute_fix.patch668 bytesnuevaron@gmail.com
#5 gin_lb-fix-attribute-3387157-5.patch719 bytesltrain
#2 gin_lb-fix-attribute-3387157-1.patch719 bytesbkildow

Issue fork gin_lb-3387157

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bkildow created an issue. See original summary.

bkildow’s picture

bkildow commented
StatusFileSize
new gin_lb-fix-attribute-3387157-1.patch719 bytes

Patch attached

grimreaper’s picture

grimreaper
Primary language French
Location France 🇫🇷
commented
Version: 1.0.0-rc4 » 1.0.x-dev
Assigned: Unassigned » grimreaper
grimreaper’s picture

grimreaper
Primary language French
Location France 🇫🇷
commented
Assigned: grimreaper » Unassigned
Status: Active » Postponed (maintainer needs more info)

Hi,

Thanks for the issue and the patch.

Could you please provide more details on how to reproduce the bug?

I have created a block content type with a multivalued (cardinality unlimited) raw text field. Then creating a block content of this type from layout builder and I had no error.

I also put some breakpoints in claro_preprocess_field_multiple_value_form and they were not triggered.

ltrain’s picture

ltrain
She/her
Location Toronto
commented
StatusFileSize
new gin_lb-fix-attribute-3387157-5.patch719 bytes

I'm having the same issue. You can reproduce it by adding a block type that references a paragraph that includes a sub-paragraph (multivalue).

I rerolled the patch.

grimreaper’s picture

grimreaper
Primary language French
Location France 🇫🇷
commented
Assigned: Unassigned » grimreaper
Status: Postponed (maintainer needs more info) » Needs review

Grimreaper opened merge request !73

grimreaper’s picture

grimreaper
Primary language French
Location France 🇫🇷
commented
Assigned: grimreaper » Unassigned
Status: Needs review » Postponed (maintainer needs more info)

Hi,

Thanks @ltrain, but even with those steps, I can't reproduce the issue.

claro_preprocess_field_multiple_value_form is not triggered.

Could you specify Core, Gin and Gin LB versions please?

nuevaron@gmail.com’s picture

nuevaron@gmail.com commented
StatusFileSize
new gin_lb_header_attribute_fix.patch668 bytes

This still exists on 3.0.0 on D10.

mykola dolynskyi’s picture

mykola dolynskyi
Primary language Ukrainian
Location Poltava
commented
StatusFileSize
new 2025-10-05_18-15.png313.98 KB

I do confirm bug still exists on v.3 and that Patch #9 helps

Thanks @nuevaron@gmail.com

not ok

christian.wiedemann made their first commit to this issue’s fork.

christian.wiedemann’s picture

christian.wiedemann commented

I merged it the 3.x branch. Thanks

christian.wiedemann’s picture

christian.wiedemann commented
Version: 1.0.x-dev » 3.0.x-dev
Status: Postponed (maintainer needs more info) » Fixed

Now that this issue is closed, please review the contribution record.

As a contributor, attribute any organization that helped you, or if you volunteered your own time.

Maintainers, please credit people who helped resolve this issue.

mykola dolynskyi’s picture

mykola dolynskyi
Primary language Ukrainian
Location Poltava
commented

thanks @Christian.wiedemann and others

Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.