tried to use raven in cata beta and get this error, would appreciate a fix if it isn't too complicated, spec is bm hunter. thank you

Raven/Conditions.lua:708: attempt to call global 'GetSpecialization' (a nil value) [string "@Raven/Conditions.lua"]:708: in function UpdateConditions'
[string "@Raven/Bars.lua"]:692: in function UpdateAllBarGroups' [string "@Raven/Bars.lua"]:155: in function InitializeBars'
[string "@Raven/Main.lua"]:926: in function <Raven/Main.lua:865>
[string "=[C]"]: ?
[string "@!KalielsTracker/Libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:66: in function <...s/!KalielsTracker/Libs/AceAddon-3.0/AceAddon-3.0.lua:61>
[string "@!KalielsTracker/Libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:523: in function `EnableAddon'
[string "@!KalielsTracker/Libs/AceAddon-3.0-13/AceAddon-3.0.lua"]:626: in function <...s/!KalielsTracker/Libs/AceAddon-3.0/AceAddon-3.0.lua:611>

Locals:
self =

{
CheckTalent = defined @Raven/Conditions.lua:321
testOrder = {
}
HexColor = defined @Raven/Profile.lua:43
UpdateInCombatBar = defined @Raven/Cancel.lua:66
modules = {
}
Nest_SetShine = defined @Raven/Nest.lua:1303
GetValueFormat = defined @Raven/Values.lua:832
ReleaseBarGroup = defined @Raven/Bars.lua:723
CopyTable = defined @Raven/Profile.lua:61
ResetColorDefault = defined @Raven/Profile.lua:485
Nest_SetBarGroupLock = defined @Raven/Nest.lua:973
Nest_FormatTime = defined @Raven/Nest.lua:1873
SetInCombatBar = defined @Raven/Cancel.lua:203
LocalSpellNames = {
}
GetExpireColor = defined @Raven/Profile.lua:702
UpdateInternalCooldowns = defined @Raven/Main.lua:2146
SetExpireColor = defined @Raven/Profile.lua:690
DefaultProfile = {
}
ResetColorDefaults = defined @Raven/Profile.lua:504
RemoveMatchingTrackers = defined @Raven/Main.lua:426
Nest_CreateBar = defined @Raven/Nest.lua:1074
CheckSpec = defined @Raven/Conditions.lua:376
SetEnabledState = defined @!KalielsTracker/Libs/AceAddon-3.0/AceAddon-3.0.lua:420
FinalizeBars = defined @Raven/Bars.lua:161
mountSpells = {
}
Nest_SetLabelColor = defined @Raven/Nest.lua:1279
LoadCustomBars = defined @Raven/Bars.lua:528
Nest_DeleteAllBars = defined @Raven/Nest.lua:1243
Nest_AdjustColor = defined @Raven/Nest.lua:1344
UpdateTrackers = defined @Raven/Main.lua:1897
ldbi = {
}
Nest_RegisterCallbacks = defined @Raven/Nest.lua:683
UnregisterAllEvents = defined @!KalielsTracker/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
InitializeBarGroup = defined @Raven/Bars.lua:494
Nest_SetBarGroupBorder = defined @Raven/Nest.lua:898
Nest_GetBarGroups = defined @Raven/Nest.lua:796
HideBars = defined @Raven/Bars.lua:175
OptionsPanel = defined @Raven/Main.lua:1132
Nest_SetBarGroupBackdrop = defined @Raven/Nest.lua:906
DetectInternalCooldown = defined @Raven/Main.lua:2128
Nest_SetColors = defined @Raven/Nest.lua:1262
isVanilla = false
InitializeSpellIDs = defined @Raven/Profile.lua:149
GetName = defined @!KalielsTracker/Libs/AceAddon-3.0/AceAddon-3.0.lua:275
InitializeBuffTooltip = defined @Raven/Main.lua:1472
name = "Raven"
ColorPalette = {
}
SetConditionDefaults = defined @Raven/Conditions.lua:848
Nest_SetAlpha = defined @Raven/Nest.lua:1294
SaveBarGroupSettings = defined @Raven/Bars.lua:525
Print = defined @Chinchilla/Libs/AceConsole-3.0/AceConsole-3.0.lua:54
RegisterCooldownDefault = defined @Raven/Profile.lua:415
Nest_SetTimeColor = defined @Raven/Nest.lua:1284
Nest_DeleteBar = defined @Raven/Nest.lua:1179
ExpansionIsOrBelow = defined @Raven/Main.lua:47
UpdateSpellEffects = defined @Raven/Main.lua:1745
Debug = defined @Raven/Main.lua:224
Nest`

That's an impressive bug. The code it's in literally checks if the current expansion is Pandaria or more recent, and Cata definitely is not supposed to flagged as such.

That unfortunately makes it a difficult bug to fix (especially without beta access), and I'm kind of inclined to say this is a bug for Blizzard to fix.

All that said, if you comment that line out (ie -- stat.specialization = GetSpecialization()), I think Raven should work just fine for you. So that might be a workaround.