[TYPO3-english] Migration 4.6 to 6.2: error "Could not acquire lock for ClassLoader cache creation"

[Christian Zenker]

> I'd have to take a closer look at the code again, but this exception is  
> usually a sign that something with creating the lock file went wrong.
> (Permissions, etc.)

I had this issue today too and it was a problem with write permissions.
Anyhow - the error message is not helping at all.

Best regards,
Christian.