"no such file or directory" in preloader - coronasdk

Question

I'm making a preloader for a large application. Today the error occurred "no such file or directory". This error occurs only on Android device. On the computer(in the simulator) works fine. All file names and directories to lowercase.
Code:
---------------------------------------------
---------------- Прелоадер ------------------
-- Сервис по загрузке текстур, звука --------
---------------------------------------------
TEXTURES = {} -- место в оперативной памяти для текстур
SOUNDS = {} -- место в оперативной памяти для звука
local Preloader = {}
local path = {
animations = "assets/images/animations/",
army_run = "assets/images/animations/army_run/",
area = "assets/images/area/",
access = "assets/images/area/access/",
artefacts = "assets/images/artefacts/",
castles = "assets/images/building/castles/",
mining = "assets/images/building/mining/",
flags = "assets/images/flags/",
interface = "assets/images/interface/",
marker = "assets/images/interface/marker/",
items = "assets/images/items/",
raw = "assets/images/raw/",
}
-- Место для путей к текстурам
Preloader.texture = {}
-- Место для путей к звуку
Preloader.sound = {}
-- Загрузка текстур в оперативную память
Preloader.loadingTextures = function(arr)
TEXTURES[arr.id] = {}
for i = 1, #arr do
local name = string.gsub(arr[i], '.*(.*)/', '')
TEXTURES[arr.id][name] = graphics.newTexture( { type="image", filename = arr[i] } )
TEXTURES[arr.id][name]:preload()
end
end
-- Загрузка звука в оперативную память
Preloader.loadingSounds = function()
for i = 1, #Preloader.sound do
sounds[Preloader.sound[i]] = audio.loadSound( "snd/"..Preloader.sound[i] )
end
end
-- Таймер
Preloader.getTimer = function()
return system.getTimer()
end
-- Окно загрузки
Preloader.screenLoader = nil
Preloader.loaderShow = function()
if(Preloader.screenLoader)then
return false
end
Preloader.screenLoader = display.newGroup()
Preloader.screenLoader.x = _W/2
Preloader.screenLoader.y = _H/2
local screen = display.newRect( 0, 0, _W, _H )
screen:setFillColor( 0, 0, 0 )
Preloader.screenLoader:insert(screen)
local imgLoad = "assets/images/animations/army_run/150.png"
local sheetLoad = graphics.newImageSheet( imgLoad, { width = 224, height = 224, numFrames = 8 } )
local animLoad = display.newSprite( Preloader.screenLoader, sheetLoad, { start = 1, count = 8, time = 800, loopCount=0 } )
animLoad.xScale, animLoad.yScale = _H*.001, _H*.001
animLoad.x, animLoad.y = 0, _H*-.07
animLoad:play()
-- Загрузка в процентах
tfLoader = display.newText( TEXTS.Preloader.loading..": 0%", 0, _H*.08, font, _H*.035 )
tfLoader:setTextColor( 1,1,1)
Preloader.screenLoader:insert(tfLoader)
Preloader.screenLoader.tf = tfLoader
-- Загрузка в этапах
stepLoader = display.newText( TEXTS.Preloader.start_load, 0, _H*.125, font, _H*.022 )
stepLoader:setTextColor( 160/255, 160/255, 160/255 )
Preloader.screenLoader:insert(stepLoader)
Preloader.screenLoader.step = stepLoader
end
-- Создание массивов с путями
Preloader.createPath = function()
for k, v in pairs(path) do
local i = 0
Preloader.texture[k] = { id = k }
for l in lfs.dir(v) do
if ( l ~= "." and l ~= ".." and l ~= "..." ) then
i = i + 1
Preloader.texture[k][i] = v..l
end
end
end
end
-- Запуск прелоадера и контроль процесса загрузки
Preloader.start = function()
-- Создаём шаги для загрузки
local loading_steps = {}
-- Шаг 1 - Загрузка путей
table.insert(loading_steps, function()
Preloader.createPath()
Preloader.screenLoader.step.text = TEXTS.Preloader.path_load..'...'
end)
-- Шаг 2 - Загрузка текстур интерфейса
table.insert(loading_steps, function()
Preloader.loadingTextures(Preloader.texture.interface)
Preloader.loadingTextures(Preloader.texture.marker)
Preloader.screenLoader.step.text = TEXTS.Preloader.interface_load..'...'
end)
-- Шаг 3 - Загрузка анимаций
table.insert(loading_steps, function()
Preloader.loadingTextures(Preloader.texture.animations)
Preloader.loadingTextures(Preloader.texture.army_run)
Preloader.screenLoader.step.text = TEXTS.Preloader.animations_load..'...'
end)
-- Шаг 4 - Создание карты
table.insert(loading_steps, function()
Preloader.loadingTextures(Preloader.texture.area)
Preloader.loadingTextures(Preloader.texture.access)
Preloader.loadingTextures(Preloader.texture.castles)
Preloader.loadingTextures(Preloader.texture.mining)
Preloader.screenLoader.step.text = TEXTS.Preloader.map_load..'...'
end)
-- Шаг 5 - Загрузка ресурсов
table.insert(loading_steps, function()
Preloader.loadingTextures(Preloader.texture.raw)
Preloader.loadingTextures(Preloader.texture.items)
Preloader.loadingTextures(Preloader.texture.artefacts)
Preloader.screenLoader.step.text = TEXTS.Preloader.res_load..'...'
end)
-- Шаг 6 - Загрузка параметров игрока
table.insert(loading_steps, function()
Preloader.loadingTextures(Preloader.texture.flags)
Preloader.screenLoader.step.text = TEXTS.Preloader.res_load..'...'
end)
local loading_steps_max = #loading_steps+1
local st = Preloader.getTimer()
Preloader.loaderShow()
local function mainHandler(e)
if(#loading_steps>0)then
loading_steps[1]()
table.remove(loading_steps, 1)
if(Preloader.screenLoader)then
local loading_p = math.floor((loading_steps_max - #loading_steps)*100/loading_steps_max)
Preloader.screenLoader.tf.text = TEXTS.Preloader.loading..': '..loading_p..'%'
end
return true
end
Preloader.loaderClose()
print('Time load: '..(Preloader.getTimer()-st)..'ms')
Runtime:removeEventListener("enterFrame", mainHandler)
end
Runtime:addEventListener("enterFrame", mainHandler)
end
-- Окончание загрузки
Preloader.loaderClose = function()
if(Preloader.screenLoader)then
if(Preloader.screenLoader.removeSelf)then
Preloader.screenLoader:removeSelf()
end
end
Preloader.screenLoader = nil
-- Переход на стартовую сцену
composer.gotoScene( start_scene, "fade", 0 )
end
-- Сборщик мусора
Preloader.garbage_collector = function()
for key in pairs(TEXTURES) do
for i=1, #TEXTURES[key] do
TEXTURES[key][i]:releaseSelf()
end
end
TEXTURES = {}
end
return Preloader
That's how I show images on stage:
M.dial = display.newImageRect( M.gr, TEXTURES.interface["btn_compas_comp.png"].filename, TEXTURES.interface["btn_compas_comp.png"].baseDir, 272, 272 )
M.dial.x, M.dial.y = X, Y
Thanks in advance friends.

Answer 1

1) All file names and directories to lowercase - I suggest to double-check this because Android filesystem is case sensitive.
2) Also check your build.settings to ensure that excludeFiles section doesn't include any of directories from your code
Edit: Another idea based on corona lfs doc - try following before loading:
local resourcesPath = system.pathForFile( "", system.ResourceDirectory )
-- Change current working directory
local success = lfs.chdir( resourcesPath ) --returns true on success
I guess that lfs doesn't point on resource directory by default. All your assets should be in this directory, but don't try to modify them - For security reasons, this directory is read-only and enforced by the operating system, not by Corona.
Edit 2: Solution that don't rely on current directory
Preloader.createPath = function()
for k, v in pairs(path) do
local i = 0
local pathForDirectory = system.pathForFile(v, system.ResourceDirectory)
Preloader.texture[k] = { id = k }
for l in lfs.dir(pathForDirectory) do
if ( l ~= "." and l ~= ".." and l ~= "..." ) then
i = i + 1
Preloader.texture[k][i] = v..l
end
end
end
end