Symfony 5.2 Error: The directory "var/cache/dev/jms_serializer" does not exist

Question

Symfony 5.2 with jms/serializer-bundle 3.7.0.

After symfony cache cleaning by command cache:clear on the next request I get an error:

The directory "var/cache/dev/jms_serializer" does not exist

I noticed that for symfony 4.4 $dir variable has var/cache/de_/jms_serializer value, but for symfony 5.2 has var/cache/dev/jms_serializer

So when symfony 5.2 runs warn up, JMSSerializerBundle creates jms_serializer folder in var/cache/dev instead of var/cache/de_

serializer config:

jms_serializer:
    visitors:
        xml_serialization:
        format_output: '%kernel.debug%'
    property_naming:
        id: 'jms_serializer.identical_property_naming_strategy'

Answer 1

The problem is fixed in symfony 5.2.1

Answer 2

Try to just remove cache directory.

rm -rf var/cache

And create it with php user:

sudo su www-data // Login as php user
mkdir var/cache // create cache directory
chown -R $USER:$USER var/cache // Change owner of cache directory

where instead of www-data is the user which run your php.

P.S. I am not fully sure, but there is no var/de directory neither for symfony, neither for serializer. It is just an temporary directory created by symfony while clearing cache process, which is usually removed after successful finish