Hi, I use a plugin called MineSync that syncs ranks between the server and Xenforo. It uses Vault to get the ranks, Apparently it has an issue getting ranks from Vault --> LuckPerms.

Here's a pastebin of the error: http://pastebin.com/BvaVAT4z - From my impression LuckPerms supports vault, so I'm personally confused.

What is the output of /vault-info?

According to vault-info it looks good, although why SuperPerms? http://i.imgur.com/JZmonaY.png

Not sure. Can you link me to the source/download page of MineSync?

Hi. Apantic developer here, we make MineSync.

@lucko MineSync is proprietary software. You can read up on it here.

This line causes the above error:
String[] vaultGroups = Main.perms.getPlayerGroups(player);

https://milkbowl.github.io/VaultAPI/net/milkbowl/vault/permission/Permission.html#getPlayerGroups(org.bukkit.entity.Player)

The trace above indicates that you're querying the SuperPerms provider:

at net.milkbowl.vault.permission.plugins.Permission_SuperPerms.getPlayerGroups(Permission_SuperPerms.java:91) ~[?:?]

which is provided by Vault as a fallback.

However, the output of the /vault-info command once the server has started indicates that LuckPerms is in-fact registered.

This issue should have been fixed by de09ae9 and b72e5f5.

@BiGUNMAN Are you sure you're using the latest version? Try the newest from here: https://ci.lucko.me/job/LuckPerms/

Assuming you were running an old build - feel free to re-open if the issue persists in the latest builds.