put lua in the subdirectory cause exception?

When I put lua file in the subdirectory ,the toggle breakpoint  in the file generate an exception?

How are you requiring the file?

– This will work
local myFile = require( “mySubdirectory.myLuaFile” )

– This won’t
local myFile = require( “mySubDirectory/myLuaFile” )

How are you requiring the file?

– This will work
local myFile = require( “mySubdirectory.myLuaFile” )

– This won’t
local myFile = require( “mySubDirectory/myLuaFile” )