Got this while flying to Timeless Isle, and selecting the Emperor Shaohan daily quest from the Guide list.

Date: 2015-02-21 10:53:33
ID: 2
Error occured in: Global
Count: 1
Message: ...e\AddOns\WoWPro_Dailies\WoWPro_Dailies_GuideList.lua line 116:
bad argument #1 to 'unpack' (table expected, got no value)
Debug:

...e\AddOns\WoWPro_Dailies\WoWPro_Dailies_GuideList.lua:116: GuideTooltipInfo()
WoWPro\WoWPro_GuideList.lua:204:
WoWPro\WoWPro_GuideList.lua:203
Locals:
(*temporary) = "table expected, got no value"

AddOns:
BlizzBugsSuck, v6.0.3.2
Swatter, v5.21c.5521 (SanctimoniousSwamprat)
Accountant, v6.01.60000
Ace3, v
ACP, v3.4.14
Arh, v1.4.2
AskMrRobot, v19
AucAdvanced, v5.21c.5521 (SanctimoniousSwamprat)
AucFilterBasic, v5.21c.5521 (SanctimoniousSwamprat)
AucFilterOutlier, v5.21c.5521.5459(5.21c/embedded)
AucMatchUndercut, v5.21c.5521.5507(5.21c/embedded)
AucScanData, v5.21c.5521 (SanctimoniousSwamprat)
AucStatHistogram, v5.21c.5521 (SanctimoniousSwamprat)
AucStatiLevel, v5.21c.5521 (SanctimoniousSwamprat)
AucStatPurchased, v5.21c.5521 (SanctimoniousSwamprat)
AucStatSales, v5.21c.5521.5476(5.21c/embedded)
AucStatSimple, v5.21c.5521 (SanctimoniousSwamprat)
AucStatStdDev, v5.21c.5521 (SanctimoniousSwamprat)
AucStatWOWEcon, v5.21c.5521.5323(5.21c/embedded)
AucUtilAHWindowControl, v5.21c.5521.5347(5.21c/embedded)
AucUtilAppraiser, v5.21c.5521.5495(5.21c/embedded)
AucUtilAskPrice, v5.21c.5521.5447(5.21c/embedded)
AucUtilAutoMagic, v5.21c.5521.5443(5.21c/embedded)
AucUtilCompactUI, v5.21c.5521.5496(5.21c/embedded)
AucUtilEasyBuyout, v5.21c.5521.5507(5.21c/embedded)
AucUtilFixAH, v5.21c.5521 (SanctimoniousSwamprat)
AucUtilItemSuggest, v5.21c.5521.5417(5.21c/embedded)
AucUtilPriceLevel, v5.21c.5521.5458(5.21c/embedded)
AucUtilScanButton, v5.21c.5521.5403(5.21c/embedded)
AucUtilScanFinish, v5.21c.5521.5515(5.21c/embedded)
AucUtilScanProgress, v5.21c.5521.4979(5.21c/embedded)
AucUtilScanStart, v5.21c.5521.5347(5.21c/embedded)
AucUtilSearchUI, v5.21c.5521.5515(5.21c/embedded)
AucUtilSimpleAuction, v5.21c.5521.5514(5.21c/embedded)
AucUtilVendMarkup, v5.21c.5521.4828(5.21c/embedded)
Babylonian, v5.1.DEV.332(/embedded)
BadBoy, v12.511
BagBrother, v6.0.16
Bagnon, v6.0.16
BagnonConfig, v6.0.16
Bazooka, vv2.4.3
BeanCounter, v5.21c.5521 (SanctimoniousSwamprat)
Breeze, vv1.31
ButtonForge, v0.9.38
Carbonite, v6.0.1
CarboniteInfo, v6.0
CarboniteNotes, v6.0.1
CarboniteNotesSample, v1.0
CarboniteQuests, v6.0.1
CarboniteSocial, v6.0.1
CarboniteWarehouse, v6.0.1
CarboniteWeekly, v6.0.1
Configator, v5.1.DEV.376(/embedded)
DebugLib, v5.1.DEV.337(/embedded)
Enchantrix, v5.21c.5521 (SanctimoniousSwamprat)
EnchantrixBarker, v5.21c.5521 (SanctimoniousSwamprat)
GatherMate2, v1.33.4
Grail, v067
HealBot, v6.0.3.10
HealBotTips, v6.0.3.10
Informant, v5.21c.5521 (SanctimoniousSwamprat)
LibExtraTip, v5.12.DEV.363(/embedded)
MasterPlan, v0.28
MineOMatic, v6.0.3.008
MogIt, v3.4.0
MyBits, v
NugComboBar, v
NugComboBarGUI, v
omouse, v0.1.4
Pawn, v1.9.13
Postal, v3.5.1
Prat30, v3.5.11
Prat30Libraries, v
QuestCompletist, v101
Skada, v1.4-28
Stubby, v5.21c.5521 (SanctimoniousSwamprat)
TheUndermineJournal, v3.4.20150221
TipHelper, v5.12.DEV.351(/embedded)
TomTom, vv60000-1.1.1
WIM, v3.6.24
WoWPro, v6.0.4
WoWProAchievements, v6.0.4
WoWProDailies, v6.0.4
WoWProLeveling, v6.0.4
WoWProProfession, v6.0.4
WoWProWorldEvents, v6.0.4
BlizRuntimeLib_enUS v6.0.3.60000
(ck=bde)

Fix queued up for 6.1.1A