Symfony2: The session id is too long or contains illegal characters

Question

I always get this error when I have some time without updating a project, only occurs in the development environment.

Warning: session_start() [function.session-start]: The session id contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,'

How to avoid? or Why does this happen?

i use:

score 1 · Answer 1 · answered Jan 19 '15 at 12:16

1

Delete your browser cookies. It fixed the error for me

answered Jan 19 '15 at 12:16

score 1 · Accepted Answer · answered Jan 11 '12 at 01:18

1

You might be using Mink or Behat. Please, make sure that they are loaded only for their environment and not dev/prod. See:

answered Jan 11 '12 at 01:18

Felix

2 Answers2