Attempted to load class "ArrayCache" from namespace "Doctrine\Common\Cache". Did you forget a "use" statement for another namespace?

[JLBA]

Hello,
I have Contao 4.9.31 installed on my Ubuntu 20.04 local webserver with php 7.4.30. I just installed SyncCto 4.0.7 with Contao manager to sync with my shared host. All System Check points are ok. I can create my client and it is granted with green point (communication is ok). But when I click to synchronise from or to the client or to check the client, I got this Contao's Internal server error 👍 Attempted to load class "ArrayCache" from namespace "Doctrine\Common\Cache". Did you forget a "use" statement for another namespace?

Is this a bug ? A misconfiguration on my local server ? Is SyncCto not compatable with Contao 4.9 ?
Thanks for help.

[stefanheimes]

Should be fixed in the hotfix/4.0.8 branch, can you test this version. It should add all for Cotnao 4.9 and php8.x support

[JLBA]

Thanks.

I've installed it manually, the db was updated (4 lines) and it seems to work now.
(But Contao Manager still indicates v4.0.7)

[zonky2]

@JLBA can you check the current version and close this issue if works well

[JLBA]

I will test it.

[zonky2]

I will test it.

@JLBA ??