Swicthing map question

[YouGroove]

This code makes program crash

function App:restart()
self.world:Release()
local mapfile = System:GetProperty("map","Maps/shoot.map")
if Map:Load(mapfile)==false then return false end
--Create a world
self.world=World:Create()
end

 

What could be the problem as i don't see ?

 

EDIT :

Ok resolved , needed self.world=World:Create() before loading map.

[Rick]

It's self.world:Clear() instead of Release and then you don't need to create a new world but just reuse the one. By creating a world on top of your existing world before clearing it you are most likely creating a memory leak.