oUF Mlight(MoP) 

if playerUnits[icon.owner] or debuffFilter[name] or UnitIsFriend('player', unit) or not icon.debuff then
            texture:SetDesaturated(false)
        else
            texture:SetDesaturated(true)
        end

if multicheck(u, "player", "boss") then
        local altpp = createStatusbar(self, cfg.texture, nil, 2, nil, 1, 1, 1, .8)
        if unit == "player" then
            altpp:SetPoint('TOPLEFT', self, 'BOTTOMLEFT', 0, -8)
            altpp:SetPoint('TOPRIGHT', self, 'BOTTOMRIGHT', 0, -8)
        else -- boss
            altpp:SetPoint('BOTTOMLEFT', hp, 'TOPLEFT', 0, 2)
            altpp:SetPoint('BOTTOMRIGHT', hp, 'TOPRIGHT', 0, 2)
        end
        altpp.bd = createBackdrop(altpp, altpp, 1, 3)
    
        altpp.text = createFont(altpp, "OVERLAY", cfg.font, cfg.fontsize, cfg.fontflag, 1, 1, 1)
        altpp.text:SetPoint"CENTER"
        self:Tag(altpp.text, "[Mlight:altpower]")
 
        self.AltPowerBar = altpp
        self.AltPowerBar.PostUpdate = PostAltUpdate
    end

Message: Interface\AddOns\oUF_Mlight\core.lua:252: attempt to index field 'value' (a nil value)
Time: 08/20/12 14:16:55
Count: 1
Stack: Interface\AddOns\oUF_Mlight\core.lua:252: in function <Interface\AddOns\oUF_Mlight\core.lua:239>
(tail call): ?
(tail call): ?
Interface\AddOns\oUF\ouf.lua:158: in function `?'
Interface\AddOns\oUF\events.lua:76: in function <Interface\AddOns\oUF\events.lua:62>

Locals: self = <unnamed> {
 __owner = oUF_MlightPet {
 }
 frequentUpdates = false
 PostUpdate = <function> defined @Interface\AddOns\oUF_Mlight\core.lua:239
 colorClass = true
 ForceUpdate = <function> defined @Interface\AddOns\oUF\elements\power.lua:193
 disconnected = false
 0 = <userdata>
 colorReaction = true
 Smooth = true
}
unit = "pet"
min = 100
max = 100
_ = 2
type = "FOCUS"
color = <table> {
 1 = 0.9
 2 = 0.5
 3 = 0.1
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index field 'value' (a nil value)"
hex = <function> defined @Interface\AddOns\oUF_Mlight\tags.lua:59
FormatValue = <function> defined @Interface\AddOns\oUF_Mlight\tags.lua:3

Message: Interface\AddOns\oUF_Mlight\core.lua:252: attempt to index field 'value' (a nil value)
Time: 08/20/12 14:16:55
Count: 1
Stack: Interface\AddOns\oUF_Mlight\core.lua:252: in function <Interface\AddOns\oUF_Mlight\core.lua:239>
(tail call): ?
(tail call): ?
Interface\AddOns\oUF\events.lua:113: in function `?'
Interface\AddOns\oUF\events.lua:69: in function <Interface\AddOns\oUF\events.lua:62>

Locals: self = <unnamed> {
 __owner = oUF_MlightPet {
 }
 frequentUpdates = false
 PostUpdate = <function> defined @Interface\AddOns\oUF_Mlight\core.lua:239
 colorClass = true
 ForceUpdate = <function> defined @Interface\AddOns\oUF\elements\power.lua:193
 disconnected = false
 0 = <userdata>
 colorReaction = true
 Smooth = true
}
unit = "pet"
min = 100
max = 100
_ = 2
type = "FOCUS"
color = <table> {
 1 = 0.9
 2 = 0.5
 3 = 0.1
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index field 'value' (a nil value)"
hex = <function> defined @Interface\AddOns\oUF_Mlight\tags.lua:59
FormatValue = <function> defined @Interface\AddOns\oUF_Mlight\tags.lua:3

Message: Interface\AddOns\oUF_Mlight\core.lua:252: attempt to index field 'value' (a nil value)
Time: 08/20/12 14:16:56
Count: 2
Stack: Interface\AddOns\oUF_Mlight\core.lua:252: in function <Interface\AddOns\oUF_Mlight\core.lua:239>
(tail call): ?
(tail call): ?
Interface\AddOns\oUF\ouf.lua:158: in function <Interface\AddOns\oUF\ouf.lua:149>
(tail call): ?
Interface\AddOns\oUF\events.lua:76: in function <Interface\AddOns\oUF\events.lua:62>

Locals: self = <unnamed> {
 __owner = oUF_MlightPet {
 }
 frequentUpdates = false
 PostUpdate = <function> defined @Interface\AddOns\oUF_Mlight\core.lua:239
 colorClass = true
 ForceUpdate = <function> defined @Interface\AddOns\oUF\elements\power.lua:193
 disconnected = false
 0 = <userdata>
 colorReaction = true
 Smooth = true
}
unit = "pet"
min = 100
max = 100
_ = 2
type = "FOCUS"
color = <table> {
 1 = 0.9
 2 = 0.5
 3 = 0.1
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index field 'value' (a nil value)"
hex = <function> defined @Interface\AddOns\oUF_Mlight\tags.lua:59
FormatValue = <function> defined @Interface\AddOns\oUF_Mlight\tags.lua:3