Having the same problem, I believe it's related to:
'Does your project include ActionScript code?
If your project includes code, you'll have to port it from
AS3 to Haxe. Likewise, if you used any Flixel-specific classes (references to FlxG for example), you'll need to figure out what to do on your own. If you don't know how to code, you'll either have to seek help on the forums or drop the behavior in question.'
More specifically I believe it's related to 'For Loops have a more concise syntax.'
But I'm not familiar enough with AS3 or HAXE to fix the issue.
I also believe the MakeSolid event is going to have the same problem.
I'll try and experiment with the 'For Loop' code to see if I can figure it out. If I manage before someone else beats me to it I'll try and provide the solution.
Edit:
I think I may have a solution!
MakeSolid Code:
var fixture = __target.body.getFixtureList();
while (fixture!=null)
{
fixture.setSensor(false);
fixture = fixture.getNext();
}
MakeSensor Code:
var fixture = __Target.body.getFixtureList();
while (fixture!=null)
{
fixture.setSensor(true);
fixture = fixture.getNext();
}
Getting some odd behaviour still, but that could be related to other things.
Second Edit, Getting some odd behaviours when transitioning, so still playing with it a bit.