ParticleSystem 'emit' error

The compiler said ParticleEmission is obsolete and to use ParticleSystem. So I changed the code to:

//wheelsList*.wheelParticles.GetComponent<ParticleEmitter>().emit = true;*

wheelsList*.wheelParticles.GetComponent().emit = true;*
and now I get the error:
CS1061: Type UnityEngine.ParticleSystem' does not contain a definition for emit’ and no extension method emit' of type UnityEngine.ParticleSystem’ could be found. Are you missing an assembly reference?
How do i use ‘emit’ now with the new ParticleSystem?
----------
I tried this and the ‘emit’ still doesnt work.
ParticleSystem ps = GetComponent ();
* var em = ps.emission;*

* em.enabled = true;*
* em.emit = true;*

There is no “emit”. “Play” is probably what you want.

Ok thanks.