This is an error I’ve run into a few times. It’s rare enough that the second time I saw it, I had a vague memory that it had happened before. The third time though (was within the last week) I remembered and even remembered where the file was located to solve it. Here’s the problem….
As far as I know this is an apache2 problem, not prior.
Apache is not running. You try to start apache and receive the message…
Cannot allocate shared memory: (17)File exists apache