[Preview 12] 'Job' does not contain a member `Schedule'

I had the following system working fine in preview 11:

Code (CSharp):

1. public class OscillateSystem : JobComponentSystem
2. {
3.   [BurstCompile]
4.   [RequireSubtractiveComponentAttribute(typeof(Pooled))]
5.   struct OscillateJob : IJobProcessComponentData<Position, Oscillate> {
6.     public float elapsed;
7.     public void Execute(ref Position position, [ReadOnly]ref Oscillate o) {
8.       var clAmped = o.amplitude - o.clamp;
9.       var wave = o.amplitude * math.sin((2 * math.PI * (1 / o.frequency) * elapsed) + (o.phase * math.PI / 180));
10.       var offset = (float)math.clamp(wave, clAmped * -1, clAmped);
11.       position.Value = o.origin + o.axis * offset;
12.     }
13.   }
14.  
15.   protected override JobHandle OnUpdate(JobHandle inputDeps) {
16.     var job = new OscillateJob() {elapsed = Time.timeSinceLevelLoad};
17.     return job.Schedule(this, 32, inputDeps);
18.   }
19. }

I updated to preview 12, and now I'm receiving these errors:

Assets/OscillateSystem.cs(27,16): error CS0315: The type `OscillateSystem.OscillateJob' cannot be used as type parameter `T' in the generic type or method `Unity.Jobs.IJobParallelForExtensions.Schedule<T>(this T, int, int, Unity.Jobs.JobHandle)'. There is no boxing conversion from `OscillateSystem.OscillateJob' to `Unity.Jobs.IJobParallelFor'

Assets/OscillateSystem.cs(27,16): error CS1928: Type `OscillateSystem.OscillateJob' does not contain a member `Schedule' and the best extension method overload `Unity.Jobs.IJobParallelForExtensions.Schedule<OscillateSystem.OscillateJob>(this OscillateSystem.OscillateJob, int, int, Unity.Jobs.JobHandle)' has some invalid arguments

I'd appreciate any help, as I'm new to both C# and Unity (and ECS).

Also while I'm here... are there any guidelines about what a good batch count is for the job scheduling? Should it be approximately the number of entities / number of cores? Does it have to be a power of 2? Is there a penalty for too large batches, or too small, and if so, any rule of thumb for finding the "sweet spot"?

Thanks.

 

https://github.com/Unity-Technologies/EntityComponentSystemSamples/blob/master/ReleaseNotes.md

IJobProcessComponentData.Schedule function no longers takes the number of batch iteration count. Batch iteration count is now always implicit to be the size of a whole chunk. This requires changing all code using IJobProcessComponentData.

Just remove the '32' from your schedule call.

 

Ah thanks @julian-moschuering ! I actually checked the release notes last night after I updated to preview 12, but they hadn't been updated by then. Should have checked again today.