"Serialization of 'Closure' is not allowed" error when trying to login in CMS

[mcdennem]

This error appears after creating a new MySQL db for a project, which has a contenttype including a collectection with a set.

Details

Question	Answer
Relevant Bolt Version	5.1.12
PHP version	7.4
MySQL version	8.0.28

Reproduction

Bug summary

• After debugging, this has to do with the content_array setting in config.yaml. When set to 0, the error is solved.

Steps to reproduce

• Create a new MySQL database with bin/console bolt:setup
• Make sure the project contains a contenttype which has collection' with a set`
• Login into the CMS
• "Serialization of 'Closure' is not allowed" error appears

[bobdenotter]

I'm not able to reproduce this, just yet. What CT are you using, exactly?

I'm trying with:

dummies:
    name: Dummies
    singular_name: Dummy
    fields:
        title:
            type: text
        slug:
            type: slug
            uses: title
        collectie:
            type: collection
            fields:
                set:
                    label: My set
                    type: set
                    fields:
                        name:
                            type: text
                            label: My name
                        multiselect:
                            label: My turtle
                            type: select
                            values: [ A-tuin, Donatello, Rafael, Leonardo, Michelangelo, Koopa, Squirtle ]
                            multiple: true
    icon_many: "fa:viruses"
    icon_one: "fa:virus"

I've tried both MySQL and SQLite and both with and without Fixtures added to the newly created DB.

Do you have more details on how to reproduce this?

[Spomsoree]

This happens to me too since the last update.

Sometimes it works, most of the times I get the error, I cannot reproduce it regularly.

This is the Data it wants to serialize:

[bobdenotter]

I've been trying to reproduce, but no dice yet. I'mma leave this open until more info is available.

[Spomsoree]

I think this occurs if you update a project that used an older version before, but thats just a guess.

[Sander-Hub]

@bobdenotter when I just tested your update to the 5.2 beta branch and wanted to click on the dashboard I get this error too.

I performed a checkout to your branch. Ran composer install. The composer install ran fine with no issues.

[Sander-Hub]

I can confirm that changing the value of content_array setting in config.yaml as described by @mcdennem allowed me to access the dashboard again.

I am unsure whether or not to create a new issue for this, as I did not install a new project I just switched branches albeit an internal one.

The only noteworthy thing is that I switched branches from Bolt 5.1.10 to the internal 5.2 beta branch (perhaps upgrading to the latest maintenance release will not cause this issue).

[laurens94]

This just happened to me as well, yesterday the issue didn't occur but today it did.
I created a new bolt 5 project and copied/migrated data from a bolt 3 project over using the Conimex extension.

Setting the value content_array: 0 helped, thanks!

[Steve-MP]

Can confirm this now happens to me following update to tagged release 5.1.12 - not the beta branch.

Turning off caching for the content_array also allows my dashboard to load.

Not sure whether this is related, but trying to manually refresh the Symfony cache through the cli also produces these warnings:

WARNING [cache] Failed to save key "property_metadata_4ba6ddb7eb691582c68feab91b1d58fb" of type ApiPlatform\Core\Metadata\Property\PropertyMetadata: Cache key "property_metadata_4ba6ddb7eb691582c68feab91b1d58fb" has non-serializable "ApiPlatform\Core\Metadata\Property\PropertyMetadata" value. ["key" => "property_metadata_4ba6ddb7eb691582c68feab91b1d58fb","exception" => Symfony\Component\Cache\Exception\InvalidArgumentException^ { …},"cache-adapter" => "Symfony\Component\Cache\Adapter\PhpFilesAdapter"]

So it seems like there might be something strange afoot with serialization.

[Spomsoree]

It seems like the issue is solved for me on version 5.2