C_TradeSkillUI (a nil value)

Guides UI and Macro
1

I get this error message , C_TradeSkillUI (a nil value), when I issue this call:

> local skillLineIDs = C_TradeSkillUI.GetAllProfessionTradeSkillLines()

I’ve also tried to use GetProfessions(), but it fails with a similar message,

> attempt to call GetProfessions() a nil value

So, I’m trying to find the functions necessary to get 3 items of the player’s skill information:

Profession name (e.g., Alchemy)
current skill level
max skill level in that bracket (e.g., 75, 150, 225, etc.)

Any help would be greatly appreciated.

Cheers
========== EDIT ===========
I forgot to mention that I’m using the WotLK Classic client.

2

this is cutdown from the functions and data that i have/use for getting profession data across the different clients.

edit: made it simpler

local function ClassicGetProfessions( ... )
	local good = false
	local skills = { }
	local skillnum = 0
	local header1 = string.lower( TRADE_SKILLS )
	local header2 = string.lower( SECONDARY_SKILLS )
	for k = 1, GetNumSkillLines( ) do
		local name, header = GetSkillLineInfo( k )
		if header ~= nil then
			name = string.lower( name )
			if string.match( header1, name ) or string.match( header2, name ) then
				good = true
				if string.match( header2, name ) and skillnum < 2 then
					skillnum = 2
				end
			else
				good = false
			end
		else
			if good then
				skillnum = skillnum + 1
				skills[skillnum] = k
			end
		end
	end
	return skills[1], skills[2], skills[3], skills[4], skills[5]
end

for _, v in ipairs( { ClassicGetProfessions( ) } ) do
	if v then
		local name, texture, rank, maxRank, numSpells, spelloffset, skillLine, rankModifier = GetSkillLineInfo( v )
		print(name)
		print(rank)
		print(maxRank)
	end
end
3

Thanks. I’ll give this a try.