Sessions Directory Is Not Writable

[66carolin]

Why am I getting Error: Sessions directory is not writable? How can I solve the problem?

[Carol.P]

By default, such an error is received when you use a custom php.ini file and the directive "session.save_path" is not set. In order to resolve it please add to your php.ini file this:
session.save_path = /tmp
The above change should be done in each directory you receive this error.