XF 2.1 Error trying to upgrade 2.1.5 within the admin panel

[JamesBrown]

i XenForo 2.1.5 is now available. UPGRADE NOW > Upgrade and Download>

Oops!

REQUESTED_VERSION_UNAVAILABLE

 

[Andro]

Go to Tools > Check for upgrades > Click on Check now... Then retry clicking Upgrade now.

2.1.5a was released within hours after 2.1.5 release hence this issue.

 

[JamesBrown]

Cheers