WowAce

What steps will reproduce the problem?
1. Just hanging around in town, not sure what triggered it, probably a mouseover or party member in range.

What is the expected output? What do you see instead?
lua error below

What version of Talented are you using? what version of the Wow client are you using?
r745 on wow 4.3, but its been happening with older versions of Talented as well

Do you have an error log of what happened?

Date: 2011-12-21 12:12:07
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\Talented\encode.lua line 245:
   attempt to perform arithmetic on local 'r2' (a nil value)
Debug:
   (tail call): ?
   Talented\encode.lua:245: TemplateToString()
   Talented\encode.lua:261: PackTemplate()
   Talented_Inspect\inspectui.lua:131: ?()
   ...Ons\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:147:
      ...Ons\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:147
   [string "safecall Dispatcher[2]"]:4:
      [string "safecall Dispatcher[2]"]:4
   [C]: ?
   [string "safecall Dispatcher[2]"]:13: ?()
   ...Ons\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:92: Fire()
   Ace3\AceEvent-3.0\AceEvent-3.0.lua:120:
      Ace3\AceEvent-3.0\AceEvent-3.0.lua:119
AddOns:
  Swatter, v5.13.5241 (BoldBandicoot)
  NPCScan, v4.3.0.1
  Ace3, v
  ACP, v3.3.17
  AddonLoader, v2.0
  Archy, v1.8.9
  Arh, v0.93
  AtlasLoot, vv6.05.02
  AtlasLootCataclysm, vv6.05.02
  AtlasLootLoader, vv6.05.02
  Babylonian, v5.1.DEV.312(/embedded)
  BigBrother, v@project-version@
  BrokerAFK, v@project-version@
  BrokerCPU, v40100
  BrokerHealBot, v@project-version@
  BrokerItemRack, v1.9
  BrokeroRA3, v1.0
  BrokerTolBarad, v1.9
  CalendarExtras, v1.5.7
  CastMount, v1.4
  ChocolateBar, vv2.2.4
  CombatTime, v@project-version@
  Configator, v5.1.DEV.312(/embedded)
  CopyThat, v
  CurrencyAlert, v4.2.0-r2
  DBMCore, v
  DBMLDB, v
  DBMSpellTimers, v
  DBMWorldEvents, v
  DebugLib, v5.1.DEV.312(/embedded)
  DeclineDuel, v1.0
  DomDom, v
  DomDomSoundPack01, v
  DomDomSoundPack02, v
  DomDomSoundPack03, v
  DomDomSoundPack04, v
  Elephant, vr220
  EnhancedStackSplit, v40300-1
  EnsidiaFails, v288
  EnsidiaFailsWotLK, v
  FishingBuddy, v1.0.7c
  FlareUp, v1.33
  Gatherer, v3.2.4
  GathererHUD, v3.2.4
  GnomishInterrupter, v
  GTFO, v4.11.3
  HealBot, v4.3.0.0
  InspectFix, v2.4
  ItemID, v1.8.3
  ItemRack, v
  LFGCallToArmsBroker, v1.0.2
  LibSink20, v
  LibTalentQuery10, v$Rev: 87 $
  MacroBank, v1.10
  MassMailer, v2.0.2
  NeedyGreedy, v1.9.2
  Omen, v3.1.5
  oRA3, v
  OscarMods, v1.0
  Overachiever, v0.65
  PowerAuras, v4.23
  Prat30, v3.4.25
  Prat30Libraries, v
  ProfessionsVault, v@project-version@
  PutGuildBack, v
  Quartz, v3.0.8
  QuestLogCollapse, v
  QuestLogCollapseAllButton, v1.0
  RaidAchievement, v1.086
  RaidAchievementAchieveReminder, v
  RaidBuffStatus, vv4.16g-beta
  RangeDisplay, vv3.9.8
  RepairBroker, v4.3.0
  RoleIcons, v@project-version@
  SavedInstances, v@project-version@
  ShamanFriend, v2.32
  SimpleGearReadyCheck, vV4.3
  Skada, v1.3-10
  SkadaAbsorbs, v1.0
  SkadaAvoidanceMitigation, v1.0
  SkadaCC, v1.0
  SkadaDamage, v1.0
  SkadaDamageTaken, v1.0
  SkadaDeaths, v1.0
  SkadaDispels, v1.0
  SkadaEnemies, v1.0
  SkadaEnsidiaFails, v1.2.3
  SkadaHealing, v1.0
  SkadaPower, v1.0
  SkadaThreat, v1.0
  StrataFix, v@project-version@
  Stubby, v5.13.5241 (BoldBandicoot)
  Talented, vr745
  TalentedInspect, vr745
  tekKompare, v3.3.0.8
  TierTooltip, v1.5
  TimeToDie, vv1.3
  TipTac, v11.09.29
  TipTacItemRef, v11.09.29
  TipTacTalents, v11.09.29
  TomTom, vv40300-1.4.4
  TomTomPing, v1.1 r022
  TradeForwarder, v2.20
  UnifiedTankFrames, v1.2.4
  XLoot, v0.91.2
  XLootMaster, v0.82
  BlizRuntimeLib_enUS v4.3.0.40300 <us>
  (ck=9c2)

94x Talented-v3.0.3-beta2\encode.lua:175 attempt to get length of field "?" (a nil value)
Talented-v3.0.3-beta2\encode.lua:175 in function "StringToTemplate"
Talented-v3.0.3-beta2\encode.lua:270 in function "UnpackTemplate"
Talented_Inspect-v3.0.3-beta2\inspectui.lua:114 in function "?"
Ace3-r1044\CallbackHandler-1.0\CallbackHandler-1.0-6.lua:147 in function <Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:147
<string>:"safecall Dispatcher[2]":4: in function <string>:"safecall Dispatcher[2]":4
<in C code>
<string>:"safecall Dispatcher[2]":13: in function "?"
Ace3-r1044\CallbackHandler-1.0\CallbackHandler-1.0-6.lua:92 in function "Fire"
Ace3-r1044\AceEvent-3.0\AceEvent-3.0-3.lua:120 in function <Ace3\AceEvent-3.0\AceEvent-3.0.lua:119

Locals:
nil

Same happens with 3.0.3 beta2

Ticket 155 and ticket 168 are all this same problem. This is clearly a wide-spread bug. Can we please make it a priority to fix this?

I've applied the following change in my copy of encode.lua and it stopped the error messages, but I have no idea what this code is doing to evaluate if this fix is actually correct.

243                         r1, index = get_next_valid_index(tmpl, index, talents)
244                         r2, index = get_next_valid_index(tmpl, index, talents)
245                         -- oscarucb
246                         local v = (r1 or 0) * 6 + (r2  or 0) + 1