WowAce

Using Spellbinder R5 (the latest version) I get the following error if I try to use it while playing a Paladin, Warrior, Druid and Priest. Does NOT crash when the class is Death Knight, Mage and Hunter. Can't speak for the Rogue, Shaman and Warlock classes. Tested with a fresh install of WoW 3.1.1 with no other addons running.

Error occured in: Global
Count: 1
Message: ...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua line 1656:
AceConfigRegistry-3.0:ValidateOptionsTable(): SpellBinder.args.school4.name: expected a string or funcref, got 'nil'
Debug:
[C]: ?
[C]: error()
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:42:
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:37
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:173:
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:168
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:207:
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:182
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:217:
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:182
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:248: ValidateOptionsTable()
...-3.0\AceConfigRegistry-3.0\AceConfigRegistry-3.0.lua:294: app()
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:1656: Open()
SpellBinder\SpellBinder.lua:30: value()
..\FrameXML\ChatFrame.lua:3231: ChatEdit_ParseText()
..\FrameXML\ChatFrame.lua:2930: ChatEdit_SendText()
..\FrameXML\ChatFrame.lua:2951: ChatEdit_OnEnterPressed()
[string "*:OnEnterPressed"]:1:
[string "*:OnEnterPressed"]:1

I can reproduce this too. It believe the root of the problem is at Spellbinder.lua line 401 where it tries to call a function to look at the "4th tab" in your spellbook. The author assumed that every player has 4 tabs in their spellbook, which isn't always the case. If the player has no spells trained in that school (like a fresh druid with no feral abilities trained) they won't have a 4th tab until they train an ability in that tree.

I don't know Lua that well, but this probably could be patched by some code that checks to see if "school4" exists before it tries to access it.

Fix committed. Download r6 from files section or Curse Updater