CRASH - EXC_BAD_ACCESS when creating a new level

Solar2D General Questions/Discussion
#1

This is my game.lua file:

local Level = require("level")  
  
local currentLevel;  
  
function new()  
  
 local obj = display.newGroup();  
 currentLevel = Level.new(1, obj); --this level creation works fine  
  
 function obj:newLevel(e)  
 local newLevel = Level.new(1, obj); --this level creation crashes  
 end  
  
 function obj:replay() --this gets called by the level  
 currentLevel:destroy();   
  
 timer.performWithDelay ( 1000, obj.newLevel, 1 ); --I don't think I should need to delay the creation of a new level, but the crash happens with or without the delay  
 end  
  
 return obj;  
  
end

As you can see, I’m just trying to destroy a level and create a new one. The destroying works fine - everything from the first level is removed and I get a blank screen. The crash comes when I try to create a new level. I create it the same way I created it the first time, so I don’t understand why it crashes the second time. I get the Apple error console that starts with this:
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
…
Thousands more unreadable errors too long to post here.

Any ideas?
[import]uid: 52127 topic_id: 10157 reply_id: 310157[/import]

#2

Try do to currentLevel = nil after currentLevel:destroy(); - not really sure, just an idea [import]uid: 38119 topic_id: 10157 reply_id: 37119[/import]

#3

Actually it turned out to be a problem with starting and stopping the physics engine in the wrong places. Since I stop the physics engine when a level gets destroyed, I had to start it whenever a new level is created. [import]uid: 52127 topic_id: 10157 reply_id: 37179[/import]