Even though no questions exist anymore in the system with the php6 tag, when using the synonym link, it says it already exists.
closed as off-topic by CRABOLO, Aza, gnat, Martijn Pieters, Doorknob Jan 13 '15 at 21:52
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question pertains only to a specific site in the Stack Exchange Network. Questions on Meta Stack Exchange should pertain to our network or software that drives it as a whole, within the guidelines defined in the help center. You should ask this question on the meta site where your concern originated." – CRABOLO, Aza, gnat, Martijn Pieters, Doorknob
Since there are no questions tagged php6, it will automagically be removed from the system eventually.
I think you are confused with the message you got. The tag doesn't currently exist, and that is the problem. Read the error message more carefully:
I'm not sure if there is a real benefit to having a PHP6 tag synonym since PHP6 doesn't actually exist yet, which is why the tag was killed off in the first place. Chances are if a person is coming here to ask a question about PHP6, it probably doesn't belong here.