Lua插件在读取目录下的文件时报错

想通过CS.System.IO.DirectoryInfo:GetFiles()来获取目录下有哪些文件，可是报错了。想问下为什么GetDirectories()可以调用，GetFiles()却不行。

下面是测试代码：

---@type CS.System.IO.DirectoryInfo

local DirectoryInfo = CS.System.IO.DirectoryInfo

---@type CS.System.IO.FileInfo

local FileInfo = CS.System.IO.FileInfo



---@param fmt string

local function printf(fmt, ...)

    App.consoleView:Log(string.format(tostring(fmt), ...))

end



---@type CS.FairyEditor.Component.MenuBar

local toolMenu = App.menu:GetSubMenu("tool")

toolMenu:AddItem("Test", "TestItem", 0, false, function(menuItem)

    -- 测试的目录为工程目录

    local testPath = App.project.basePath

    printf("[Test] PluginPath = %s, testPath = %s", PluginPath, testPath)



    -- 获取目录信息

    local directoryInfo = DirectoryInfo(testPath)

    printf("directoryInfo = %s", directoryInfo)



    -- 获取目录下所有文件夹

    local allDirectories = directoryInfo:GetDirectories()

    printf("allDirectories = %s, Length=%s", allDirectories, allDirectories.Length)

    -- 遍历目录

    for i = 0, allDirectories.Length-1 do

        local directory = allDirectories[i]

        printf("directory = %s, FullName = %s", directory, directory.FullName)

    end



    -- 获取目录下所有文件

    local allFiles = directoryInfo:GetFiles()

    printf("allFiles = %s, Length=%s", allFiles, allFiles.Length)

    -- 遍历文件

    for j = 0, allFiles.Length-1 do

        local file = allFiles[j]

        printf("file = %s, FullName=%s", file, file.FullName)

    end

end)



function onDestroy()

    toolMenu:RemoveItem("TestItem")

end

下面是报错信息：

[16:08:53] [Test] PluginPath = D:\Unity\FGUIProject\plugins\Test, testPath = D:\Unity\FGUIProject
[16:08:53] directoryInfo = D:\Unity\FGUIProject: -1112562640
[16:08:53] allDirectories = System.IO.DirectoryInfo[]: -1127617904, Length=4
[16:08:53] directory = D:\Unity\FGUIProject\.objs: -155161072, FullName = D:\Unity\FGUIProject\.objs
[16:08:53] directory = D:\Unity\FGUIProject\assets: 323539712, FullName = D:\Unity\FGUIProject\assets
[16:08:53] directory = D:\Unity\FGUIProject\plugins: 802240496, FullName = D:\Unity\FGUIProject\plugins
[16:08:53] directory = D:\Unity\FGUIProject\settings: 1280941280, FullName = D:\Unity\FGUIProject\settings
[16:08:53] LuaException: [string "Plugin-com.fairygui.plugin.test"]:32: attempt to call a nil value (method 'GetFiles')
stack traceback:
[string "Plugin-com.fairygui.plugin.test"]:32: in function <[string "Plugin-com.fairygui.plugin.test"]:13>
XLua.LuaEnv.ThrowExceptionFromError (System.Int32 oldTop) (at <00000000000000000000000000000000>:0)
XLua.LuaFunction.Action[T] (T a) (at <00000000000000000000000000000000>:0)
UnityEngine.AI.NavMesh+OnNavMeshPreUpdate.Invoke () (at <00000000000000000000000000000000>:0)
FairyGUI.EventBridge.CallInternal (FairyGUI.EventContext context) (at <00000000000000000000000000000000>:0)
FairyGUI.EventDispatcher.InternalDispatchEvent (System.String strType, FairyGUI.EventBridge bridge, System.Object data, System.Object initiator) (at <00000000000000000000000000000000>:0)
...