Fatal Error: Attempt to assign property "parsed_block" on null #46294

bph · 2022-12-04T16:05:15Z

Description

Seems the error was introduced after 4.7.0 RC 1 was compiled (Nov 30)

Full error message + stack

[04-Dec-2022 09:00:53 UTC] PHP Fatal error: Uncaught Error: Attempt to assign property "parsed_block" on null in /wp-includes/class-wp-block.php:239
Stack trace:
#0 /wp-content/plugins/gutenberg/build/block-library/blocks/navigation.php(707): WP_Block->render()
#1 /wp-includes/class-wp-block.php(258): gutenberg_render_block_core_navigation()
#2 /wp-includes/class-wp-block.php(244): WP_Block->render()
#3 /wp-includes/class-wp-block.php(244): WP_Block->render()
#4 /wp-includes/blocks.php(1051): WP_Block->render()
#5 /wp-includes/blocks.php(1089): render_block()
#6 /wp-content/plugins/gutenberg/build/block-library/blocks/template-part.php(131): do_blocks()
#7 /wp-includes/class-wp-block.php(258): gutenberg_render_block_core_template_part()
#8 /wp-includes/blocks.php(1051): WP_Block->render()
#9 /wp-includes/blocks.php(1089): render_block()
#10 /wp-includes/block-template.php(240): do_blocks()
#11 /wp-includes/template-canvas.php(12): get_the_block_template_html()
#12 /wp-includes/template-loader.php(106): include('...')
#13 /wp-blog-header.php(19): require_once('...')
#14 /index.php(17): require('...')
#15 {main}
thrown in /wp-includes/class-wp-block.php on line 239

Step-by-step reproduction instructions

Still trying to figure out what exactly goes wrong.

What I tried

Using GB 14.6.1 no error message
Using 14.7.0 RC 1 no error message.
Using WP 6.1.1 + Gutenberg Nightly = error message

Environment info

WordPress 6.2-alpha-54929
Version 14.8.20221202 (Gutenberg Nightly)
PHP 8.0
Theme: Geologist

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

Header Core containing the navigation


<!-- wp:group {"className":"gapless-group","layout":{"inherit":"true","type":"constrained"}} -->
  <div class="wp-block-group gapless-group"><!-- wp:group {"align":"full","style":{"spacing":{"padding":{"bottom":"var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dgap\u002d\u002dvertical)","top":"var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dgap\u002d\u002dvertical)"}}},"className":"site-header site-header-linear","layout":{"type":"flex","flexWrap":"nowrap","justifyContent":"center"}} -->
  <div class="wp-block-group alignfull site-header site-header-linear" style="padding-top:var(--wp--custom--gap--vertical);padding-bottom:var(--wp--custom--gap--vertical)"><!-- wp:group {"className":"site-brand","layout":{"type":"flex"}} -->
  <div class="wp-block-group site-brand"><!-- wp:site-logo {"width":64} /-->
  
  <!-- wp:group {"className":"site-words-stack-small","layout":{"type":"constrained","justifyContent":"left"}} -->
  <div class="wp-block-group site-words-stack-small"><!-- wp:site-title {"style":{"typography":{"textTransform":"capitalize"}}} /-->
  
  <!-- wp:site-tagline {"style":{"typography":{"fontSize":"var(\u002d\u002dwp\u002d\u002dcustom\u002d\u002dfont-sizes\u002d\u002dx-small)"}}} /--></div>
  <!-- /wp:group --></div>
  <!-- /wp:group -->
  
  <!-- wp:navigation {"ref":740,"__unstableLocation":"primary","className":"blockbase-responsive-navigation-linear","layout":{"type":"flex","setCascadingProperties":true,"justifyContent":"right","orientation":"horizontal"},"style":{"spacing":{"margin":{"top":"0"}}}} /--></div>
  <!-- /wp:group --></div>
  <!-- /wp:group -->

The text was updated successfully, but these errors were encountered:

bph · 2022-12-04T19:56:05Z

Might be related to this merged PR #46279 @getdave - I wonder if that is a backwards compatibility issue?

Note: 'parse_blocks' includes a null block with '\n\n' as the content when

it encounters whitespace. This is not a bug but rather how the parser

is designed.

getdave · 2022-12-05T08:59:32Z

Ok I'm looking into this now. Thanks for the ping! 🙇

getdave · 2022-12-05T09:03:53Z

Any chance you could send me the inner blocks of that Navigation Menu with the ID 740? To do this you can follow this guide.

bph · 2022-12-05T13:10:20Z

Here is are the actual menu items. @getdave

<!-- wp:site-logo {"width":32,"style":{"color":{"duotone":["#F5F0E5","#FFFFFF"]}}} /-->	 <!-- wp:site-logo {"width":32,"style":{"color":{"duotone":["#F5F0E5","#FFFFFF"]}}} /-->
 <!-- wp:navigation-link {"label":"Home","type":"custom","url":"https://icodeforapurpose.com/","kind":"custom","isTopLevelLink":true} /-->
 <!-- wp:navigation-submenu {"label":"About Me","type":"page","id":3,"url":"https://icodeforapurpose.com/about/","kind":"post-type","isTopLevelItem":true} --> 
 <!-- wp:navigation-link {"label":"Uses","type":"page","id":68,"url":"https://icodeforapurpose.com/uses/","kind":"post-type","isTopLevelLink":false} /-->	 
 <!-- wp:navigation-link {"label":"Contact","type":"page","id":4,"url":"https://icodeforapurpose.com/contact/","kind":"post-type","isTopLevelLink":false} /-->
 <!-- /wp:navigation-submenu --> <!-- /wp:navigation-submenu -->  
 
 <!-- wp:social-links {"iconColor":"primary","iconColorValue":"#F5F0E5","openInNewTab":true,"className":"is-style-logos-only"} -->
 <ul class="wp-block-social-links has-icon-color is-style-logos-only"><!-- wp:social-link {"url":"https://twitter.com/bph","service":"twitter"} /-->
 <!-- wp:social-link {"url":"https://mastodon.social/@bph","service":"mastodon","rel":"me"} /--></ul>
 <!-- /wp:social-links -->

Could it possibly be that the empty submenu that's causing the error?
 

getdave · 2022-12-05T13:44:32Z

<!-- /wp:navigation-submenu --> <!-- /wp:navigation-submenu -->

The later tag is invalid and I guess should not be present. If a standalone block is desired then it should be:

<!-- wp:navigation-submenu /-->

This matches how HTML works.

Containing

<div>Hello world</div>

vs

Self closing

<div />

Notice the slash has moved to the end.

I don't know how this would have occurred in the block editor unless someone manually edited those blocks 🤔

Also having created a menu with these inner blocks, I don't see the error you are reporting on the front of the site.

bph · 2022-12-05T14:47:48Z

Oh there might have been some editing hick-ups.
Here is the screenshot of the menu causing the fatal error.

bph · 2022-12-06T19:57:40Z

And here is the code cleaned up.

<!-- wp:site-logo {"width":32,"style":{"color":{"duotone":
    ["#F5F0E5","#FFFFFF"]}}} /-->	
    
 <!-- wp:navigation-link {"label":"Home","type":"custom","url":"https://icodeforapurpose.com/",
    "kind":"custom","isTopLevelLink":true} /-->
 
<!-- wp:navigation-submenu {"label":"About 
        Me","type":"page","id":3,"url":"https://icodeforapurpose.com/about/",
        "kind":"post-type","isTopLevelItem":true} --> 
    <!-- wp:navigation-link {"label":"Uses","type":"page","id":68,"url":
        "https://icodeforapurpose.com/uses/","kind":"post-type","isTopLevelLink":false} /-->

    <!-- wp:navigation-link {"label":"Contact","type":"page","id":4,
        "url":"https://icodeforapurpose.com/contact/","kind":"post-type","isTopLevelLink":false} /-->
 <!-- /wp:navigation-submenu -->
 
 <!-- wp:social-links {"iconColor":"primary","iconColorValue":"#F5F0E5","openInNewTab":true,
    "className":"is-style-logos-only"} -->
    <ul class="wp-block-social-links has-icon-color is-style-logos-only">
        <!-- wp:social-link {"url":"https://twitter.com/bph","service":"twitter"} /-->
        <!-- wp:social-link {"url":"https://mastodon.social/@bph","service":"mastodon","rel":"me"} /-->
    </ul>
    <!-- /wp:social-links -->

scruffian · 2022-12-07T17:44:52Z

Potential fix here: WordPress/wordpress-develop#3731

getdave · 2022-12-07T18:17:30Z

And here #46374

bph · 2022-12-12T22:45:04Z

This seems to have been fixed, since Dec 8th, 2022

bph added [Block] Navigation Affects the Navigation Block [Type] Bug An existing feature does not function as intended labels Dec 4, 2022

bph closed this as completed Dec 12, 2022

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Fatal Error: Attempt to assign property "parsed_block" on null #46294

Fatal Error: Attempt to assign property "parsed_block" on null #46294

bph commented Dec 4, 2022 •

edited

Loading

bph commented Dec 4, 2022 •

edited

Loading

getdave commented Dec 5, 2022

getdave commented Dec 5, 2022

bph commented Dec 5, 2022 •

edited

Loading

getdave commented Dec 5, 2022

bph commented Dec 5, 2022

bph commented Dec 6, 2022

scruffian commented Dec 7, 2022

getdave commented Dec 7, 2022

bph commented Dec 12, 2022

Fatal Error: Attempt to assign property "parsed_block" on null #46294

Fatal Error: Attempt to assign property "parsed_block" on null #46294

Comments

bph commented Dec 4, 2022 • edited Loading

Description

Full error message + stack

Step-by-step reproduction instructions

Environment info

Please confirm that you have searched existing issues in the repo.

Please confirm that you have tested with all plugins deactivated except Gutenberg.

bph commented Dec 4, 2022 • edited Loading

getdave commented Dec 5, 2022

getdave commented Dec 5, 2022

bph commented Dec 5, 2022 • edited Loading

getdave commented Dec 5, 2022

bph commented Dec 5, 2022

bph commented Dec 6, 2022

scruffian commented Dec 7, 2022

getdave commented Dec 7, 2022

bph commented Dec 12, 2022

bph commented Dec 4, 2022 •

edited

Loading

bph commented Dec 4, 2022 •

edited

Loading

bph commented Dec 5, 2022 •

edited

Loading