Expected Behavior

Errors clicking many vendors, for example, the Archivist in Korthia.

Steps to Reproduce the Problem

1. Click on Vendor to open sale screen
2. Errors galore

9.1.5 removed multiple functions from GameTooltipTemplate including SetBackdropColor
Error in VenderorFrames.xml due to 9.1.5 api changes, removing SetBackdropColor from GameTooltipTemplate
Fix is to edit VendorerFrames.xml and removed the script calls from VendorerTooltip and VendorerHintTooltip
Removed calls to self:SetBackdropColor(), self:SetBackdropBorderColor() and self:SetScale()

Message: [string "VendorerTooltip:OnShow"]:1: attempt to call method 'SetBackdropColor' (a nil value)
Time: Tue Nov  2 20:53:09 2021
Count: 1
Stack: [string "VendorerTooltip:OnShow"]:1: attempt to call method 'SetBackdropColor' (a nil value)
[string "*:OnShow"]:1: in function <[string "*:OnShow"]:1>
[string "=[C]"]: in function `SetHyperlink'
[string "@Interface\AddOns\!Vendorer\knownitems.lua"]:56: in function `IsItemKnown'
[string "@Interface\AddOns\!Vendorer\core.lua"]:1926: in function `UpdateMerchantInfo'
[string "@Interface\AddOns\!Vendorer\core.lua"]:1801: in function <Interface\AddOns\!Vendorer\core.lua:1801>
[string "=[C]"]: in function `MerchantFrame_UpdateMerchantInfo'
[string "@Interface\FrameXML\MerchantFrame.lua"]:140: in function <Interface\FrameXML\MerchantFrame.lua:133>
[string "=[C]"]: in function `MerchantFrame_Update'
[string "@Interface\AddOns\!Vendorer\vendorfilter.lua"]:566: in function `UpdateMerchantItems'
[string "@Interface\AddOns\!Vendorer\core.lua"]:471: in function `?'
[string "@Interface\AddOns\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:119: in function <...Ons\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:119>
[string "=[C]"]: ?
[string "@Interface\AddOns\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:29: in function <...Ons\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:25>
[string "@Interface\AddOns\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua"]:64: in function `Fire'
[string "@Interface\AddOns\Ace3\AceEvent-3.0\AceEvent-3.0.lua"]:120: in function <Interface\AddOns\Ace3\AceEvent-3.0\AceEvent-3.0.lua:119>

Locals: self = VendorerTooltip {
 0 = <userdata>
 NineSlice = <unnamed> {
 }
 textRight2Font = "GameTooltipText"
 updateTooltipTimer = 0.200000
 TextRight2 = VendorerTooltipTextRight2 {
 }
 layoutType = "TooltipDefaultLayout"
 textLeft1Font = "GameTooltipHeaderText"
 TopOverlay = <unnamed> {
 }
 TextRight1 = VendorerTooltipTextRight1 {
 }
 TextLeft2 = VendorerTooltipTextLeft2 {
 }
 needsReset = true
 BottomOverlay = <unnamed> {
 }
 TextLeft1 = VendorerTooltipTextLeft1 {
 }
 textLeft2Font = "GameTooltipText"
 textRight1Font = "GameTooltipHeaderText"
}
(*temporary) = nil
(*temporary) = VendorerTooltip {
 0 = <userdata>
 NineSlice = <unnamed> {
 }
 textRight2Font = "GameTooltipText"
 updateTooltipTimer = 0.200000
 TextRight2 = VendorerTooltipTextRight2 {
 }
 layoutType = "TooltipDefaultLayout"
 textLeft1Font = "GameTooltipHeaderText"
 TopOverlay = <unnamed> {
 }
 TextRight1 = VendorerTooltipTextRight1 {
 }
 TextLeft2 = VendorerTooltipTextLeft2 {
 }
 needsReset = true
 BottomOverlay = <unnamed> {
 }
 TextLeft1 = VendorerTooltipTextLeft1 {
 }
 textLeft2Font = "GameTooltipText"
 textRight1Font = "GameTooltipHeaderText"
}
(*temporary) = 0
(*temporary) = 0
(*temporary) = 0
(*temporary) = 0.950000
(*temporary) = "attempt to call method 'SetBackdropColor' (a nil value)"

You can fix this by the info @Wraithlord2015 mentioned.

open VendorerFrames.xml

replace line 282 and 283 as follows

self.NineSlice:SetCenterColor()(0, 0, 0, 0.9);
self.NineSlice:SetBorderColor()(0, 0, 0, 1);

and 294 and 295

self.NineSlice:SetCenterColor()(0, 0, 0, 0.95);
self.NineSlice:SetBorderColor()(0, 0, 0, 1);

Thanks. That fixed the SetBackDrop issue. but I'm getting another error as per below

1x [string "VendorerTooltip:OnShow"]:1: attempt to call a nil value
[string ":OnShow"]:1: in function <[string ":OnShow"]:1>
[string "=[C]"]: in function SetHyperlink' [string "@!Vendorer\core.lua"]:877: in function GetItemTooltipInfo'
[string "@!Vendorer\VendorerStackSplitFrame.lua"]:513: in function Open' [string "@!Vendorer\VendorerStackSplitFrame.lua"]:570: in function MerchantItemButton_OnModifiedClick'
[string ":OnClick"]:2: in function <[string ":OnClick"]:1>

Locals:
self = VendorerTooltip {
0 =
NineSlice = {
}
textRight2Font = "GameTooltipText"
updateTooltipTimer = 0.200000
TextRight2 = VendorerTooltipTextRight2 {
}
layoutType = "TooltipDefaultLayout"
textLeft1Font = "GameTooltipHeaderText"
TopOverlay = {
}
TextRight1 = VendorerTooltipTextRight1 {
}
TextLeft2 = VendorerTooltipTextLeft2 {
}
needsReset = true
BottomOverlay = {
}
TextLeft1 = VendorerTooltipTextLeft1 {
}
textLeft2Font = "GameTooltipText"
textRight1Font = "GameTooltipHeaderText"
}
(*temporary) = nil
(*temporary) = 0
(*temporary) = 0
(*temporary) = 0
(*temporary) = 0.950000
(*temporary) = "attempt to call a nil value"

You can temporarily disbale "paint known items" in vendorer settings to by pass this error.
I also have this error, I will try to find the cause later

Tried and didn't work unfortunately, That option was always disable for me since I use another addon for the same purpose.

Not sure how to fix it, but as posted elsewhere:

from Blizzard's UI code in BlizzardInterfaceCode/Interface/SharedXML/SharedTooltipTemplates.lua :

function TooltipBackdropTemplateMixin:SetBackdropColor(r, g, b, a)
self.NineSlice:SetCenterColor(r, g, b, a);
end

function TooltipBackdropTemplateMixin:SetBackdropBorderColor(r, g, b, a)
self.NineSlice:SetBorderColor(r, g, b, a);
end

None came up with a solution yet? Couldn't find it anywhere

A friend helped me fixed with this change.

Full fixed VendorerFrames.xml download link

https://file.io/0rZ05jjYmoZo

Here are the changes he made

diff --git a/VendorerFrames.xml b/VendorerFrames.xml
index 484e472..0a8b865 100644
--- a/VendorerFrames.xml
+++ b/VendorerFrames.xml
@@ -271,16 +271,20 @@

•  <OnLoad>
  

•    Mixin(self.NineSlice, BackdropTemplateMixin);
  

•    self.NineSlice:SetScript("OnSizeChanged", self.NineSlice.OnBackdropSizeChanged);
  

•  </OnLoad>
                    <OnShow>
  

•                           self:SetBackdrop{
  

•                           self.NineSlice:SetBackdrop{
                                    bgFile = [[Interface\Tooltips\UI-Tooltip-Background]],
                                    edgeFile = [[Interface\AddOns\!Vendorer\media\TooltipBorder]],
                                    edgeSize = 16,
                                    tile = true, tileSize = 16,
                                    insets = {left = 4, right = 4, top = 4, bottom = 4}
                            }
  

•                           self:SetBackdropColor(0, 0, 0, 0.9);
  

•                           self:SetBackdropBorderColor(0, 0, 0, 1);
  

•                           self.NineSlice:SetCenterColor(0, 0, 0, 0.9);
  

•                           self.NineSlice:SetBorderColor(0, 0, 0, 1);
                    </OnShow>
            </Scripts>
    </GameTooltip>
  

@@ -291,8 +295,8 @@

•                           self:SetBackdropColor(0, 0, 0, 0.95);
  

•                           self:SetBackdropBorderColor(0, 0, 0, 1);
  

•                           self.NineSlice:SetCenterColor(0, 0, 0, 0.95);
  

•                           self.NineSlice:SetBorderColor(0, 0, 0, 1);
                            self:SetScale(0.77);
                    </OnShow>
            </Scripts>
  

Getting the same errors that Galthariel mentioned. No idea how to fix it.

Thanks - that did the trick! Now to see about fixing FishingBuddy. :)

Any chance you can post a new link for the fix, the one mentioned does not work, well its empty.

Any chance you can post a new link for the fix, the one mentioned does not work, well its empty.

There you go

VendorerFrames.zip

Hello, I created a PR addressing this issue and others for DragonFlight! From what I tested, the addon is completely functional.
#32.
Feel free to use the code from my fork that is compatible with DF, making the addon functional again, until the author can approve it!

https://github.com/sebid/Vendorer/archive/refs/heads/master.zip