Error - Cannot dump userdata.

[Kzisor]

Okay so I've spent 30 minutes testing as many different combinations as I possibly can think of, but I can't find an answer or solution. If anyone can help me out that'd be greatly appreciated.

 

Error

00:00:20]: [string "scripts/dumper.lua"]:112: Cannot dump userdata (Transform (201C4DE8) - unknown)

LUA ERROR stack traceback:

=[C]:-1 in (global) error © <-1--1>

scripts/dumper.lua:112 in () ? (Lua) <98-113>

   value = Transform (201C4DE8)

   var = nil

   i = 8

=(tail call):-1 in ()  (tail) <-1--1>

scripts/dumper.lua:151 in () ? (Lua) <141-159>

   value = 113733 - soda_treasure(LIMBO) (valid:true)

   numidx = 1

   key = Transform

   val = Transform (201C4DE8)

=(tail call):-1 in ()  (tail) <-1--1>

scripts/dumper.lua:132 in () ? (Lua) <127-136>

   t = table: 0CB9D738

   key = 113733 - soda_treasure(LIMBO) (valid:true)

   s = nil

scripts/dumper.lua:149 in () ? (Lua) <141-159>

   value = table: 144EB6C8

   numidx = 1

   key = 113733 - soda_treasure(LIMBO) (valid:true)

   val = table: 0CB9D670

=(tail call):-1 in ()  (tail) <-1--1>

scripts/dumper.lua:151 in () ? (Lua) <141-159>

   value = table: 0CB9D4E0

   numidx = 1

   key = soda

   val = table: 144EB6C8

=(tail call):-1 in ()  (tail) <-1--1>

scripts/dumper.lua:151 in () ? (Lua) <141-159>

   value = table: 0CB9D3A0

   numidx = 1

   key = data

   val = table: 0CB9D4E0

=(tail call):-1 in ()  (tail) <-1--1>

scripts/dumper.lua:225 in (global) DataDumper (Lua) <77-245>

   value = table: 0CB9D3A0

   varname = return 

   fastmode = true

   ident = nil

   defined = table: 0CB9D710

   dumplua = function - scripts/dumper.lua:214

   string_format = function - =[C]:-1

   type = function - =[C]:-1

   string_dump = function - =[C]:-1

   string_rep = function - =[C]:-1

   tostring = function - =[C]:-1

   pairs = function - =[C]:-1

   table_concat = function - =[C]:-1

   keycache = table: 0CB9D738

   strvalcache = table: 0CB9D760

   out = table: 0CB9D788

   closure_cnt = 0

   fcts = table: 0CB9D828

   test_defined = function - scripts/dumper.lua:116

   make_key = function - scripts/dumper.lua:127

scripts/networking.lua:94 in (global) SerializeUserSession (Lua) <87-99>

   player = 113290 - naomi (valid:true)

   isnewspawn = nil

   is_local_player = true

   playerinfo = table: 0CB9D3A0

   new_refs = nil

scripts/mainfunctions.lua:599 in (global) SaveGame (Lua) <512-638>

   savename = survival_5

   cb = function - scripts/saveindex.lua:622

   callback = function - scripts/mainfunctions.lua:518

   save = table: 227C9430

   nument = 12069

   saved_ents = table: 227C9480

   references = table: 227C94D0

   new_refs = nil

   ground = 100017 - forest (valid:true)

   i = 1

   player = 113290 - naomi (valid:true)

scripts/saveindex.lua:626 in (method) SaveCurrent (Lua) <564-627>

   self =

      data = table: 0D752C18

      current_slot = 5

   onsavedcb = function - scripts/mainfunctions.lua:964

   check_snapshot = nil

   direction = nil

   cave_num = nil

   ground = 100017 - forest (valid:true)

   level_number = 1

   day_number = 1

   current_mode = survival

   data = table: 0D753D20

   dlc = table: 0D753C08

   snapshots = table: 0D754040

   take_snapshot = false

   onsavedindex = function - scripts/saveindex.lua:612

   onsavedgame = function - scripts/saveindex.lua:622

scripts/mainfunctions.lua:981 in (local) cb (Lua) <973-986>

scripts/frontend.lua:447 in (method) DoFadingUpdate (Lua) <411-451>

   self =

      topblackoverlay = Image - images/global.xml:square.tex

      fade_title_out = false

      overlayroot = overlayroot

      save_indicator_time_left = 0

      fade_title_time = 0

      helptextbg = Image - images/global.xml:square.tex

      helptext = HelpText

      subtitle = Text - 

      updating_widgets_alt = table: 14BA0468

      spinner_repeat_time = -1

      title = Text - 

      scroll_repeat_time = -1

      topFadeHidden = false

      gameinterface = 100012 -  (valid:true)

      updating_widgets = table: 1528F318

      lastx = 841

      total_fade_time = 1

      lasty = 378

      autosave_enabled = true

      fade_time = 1.0000043418258

      blackoverlay = Image - images/global.xml:square.tex

      screenstack = table: 0D753E10

      num_pending_saves = 0

      save_indicator_fade_time = 0

      saving_indicator = UIAnim

      consoletext = Text - CONSOLE TEXT

      alpha = 1

      tr

[00:00:20]: SCRIPT ERROR! Showing error screen

 

Broken Code:

local function OnSave(inst, data)    if inst.abigails ~= nil then        local abigails = inst.abigails        for k, v in pairs(inst.abigails) do            if inst.abigails[k] ~= nil then                abigails[k] = inst.abigails[k]:GetSaveRecord()            end        end        data.abigails = abigails    endend 

 

Working Code:

local function OnSave(inst, data)    if inst.abigail ~= nil then        data.abigail = inst.abigail:GetSaveRecord()    endend 

 

Basically I'm trying to create a way to possess multiple Abigail's at the same time. Everything aside from saving is working properly, which has become a pain in the rear.

 

 

Edit:

I resolved the issue I was having through a different method, however, this is still an issue that probably should be looked into to see if we can find a resolution because I personally see no reason why this method should not work.

Edited February 25, 2015 by Kzisor

[DarkXero]

Are you sure that inst.abigails[k] refers to one of many inst.abigail? I would like to see the character and ghost files.

[bizziboi]

@Kzisor, 

 

It seems to me that the fix you have would not directly be responsible for it to work.

It seems the one that crashes tries to save a record with a Transform as one of the fields, instead of storing x, y and z. The Transform is a c-side component and they can not be serialized through the save system.

[Kzisor]

@DarkXero, yes, it is correctly referencing a prefab. I'm not inclined to share the files because I am working in collaboration with another whom has not given me expressive permission to share with anyone. I can indeed verify that the information is getting set properly because the following code works:

 

local function OnDespawn(inst)    if inst.abigails ~= nil then        for k, v in pairs(inst.abigails) do            v.components.health:SetInvincible(true)            v:PushEvent("death")            --in case the state graph got interrupted somehow, just force            --removal after the dissipate animation should've finished            v:DoTaskInTime(25 * FRAMES, v.Remove)        end    endend 

 

@bizziboi, yes PeterA mentioned that it might be in the userdata itself and that I should try debugging the userdata that it's receiving to ensure that it's getting the proper data. I will definitely be doing more tests to see if I can get it corrected.

[DarkXero]

local function OnSave(inst, data)   if inst.abigails then      data.abigails = {}      for _, v in pairs(inst.abigails) do         table.insert(data.abigails, v:GetSaveRecord())      end   endend

Oh, alright. No worries. Can you try this?

[Kzisor]

@DarkXero, I already tried that, let me get you the error message from it.

 

[string "../mods/Wendy/scripts/prefabs/wendy.lua"]:36: bad argument #2 to 'insert' (number expected, got table)

 

FWIW: Line 36 is table.insert

 

Yes, this is using your code exactly.

Edited February 25, 2015 by Kzisor

[DarkXero]

local function OnSave(inst, data)   if inst.abigails then      data.abigails = {}      for i, v in ipairs(inst.abigails) do         data.abigails[i] = v:GetSaveRecord()      end   endend

And how about this?

[Kzisor]

@DarkXero, ipairs actually allows it to save. Now that is something very strange.... 

 

Edit:

So it allows me to save, but no actual data is saved. Unlike the work-a-round method.

Edited February 25, 2015 by Kzisor

[DarkXero]

Kzisor, I think the issue lied here:

local abigails = inst.abigailsdata.abigails = abigails

But maybe you can try:

local function OnSave(inst, data)   if inst.abigails then      data.abigails = {}      for k, v in pairs(inst.abigails) do         data.abigails[k] = v:GetSaveRecord()      end   endend

to verify?

 

Also, what would be the keys for identifying the different abigails in inst.abigails? If there are none, then pairs behaves like ipairs or what keys does it use?

 

Edit: nevermind

Edited February 25, 2015 by DarkXero

[DarkXero]

How do you know nothing gets saved?

[Kzisor]

@DarkXero, because whenever I save and open the same world; Abigail is a new spawn not spawned from the save file. If it's spawned from the save file you won't see her spawn she will be there by the time the world loads. Otherwise you see her spawn; mainly because I have her set to spawn 5 seconds after I load into the game. 

 

I think the issue lies now in the fact that inst.abigails is now empty. I think I've changed the code so much that the problem which I was having might not be able to be reproduced with the current iteration of code. The person whom I am collaborating with doesn't care about this particular issue at hand because we got a better fix for it with what their wanting. I want it fixed because I want to use this particular style for another mod (Twin Powers).

[DarkXero]

Kzisor, alright. I'm glad everything worked out.

[Kzisor]

@DarkXero, thanks for your help. If I encounter this issue again while I'm writing my other mod I will definitely use your suggested methods and see if I can find a resolution. 

[bizziboi]

So (part of) the problem was that inst.abigails was a table of entity->entity, so the save record had entities as its keys. Since the serialization will try to serialize the keys it would serialize the entity and thus try to serialize the Transform, which it couldn't.

[bizziboi]

table.insert(data.abigails, v:GetSaveRecord())

 

And as man-machine Vito spotted, the above line errors because GetSaveRecord returns two parameters, thus calling the table.insert that takes 3 parameters, which indeed expects a number as its second parameter. 

[DarkXero]

bizziboi, V2C, enlightening as always. Thank you!