I'm using 2018年3月6日f1, MacBook Pro. I found out that some compute shaders are not correctly compiled on Metal because the lines of #pragma kernel contain comments. Unity shows error like "Macro names must be identifiers at kernel [KERNEL_NAME] metal :00".

ex) Boids.compute

// カーネル関数を指定
#pragma kernel ForceCS // 操舵力を計算
#pragma kernel IntegrateCS // 速度, 位置を計算

When I remove comments at the right, I can run samples without problems.

// カーネル関数を指定
#pragma kernel ForceCS
#pragma kernel IntegrateCS

Maybe it's Unity bug but I think it's safe to delete comments after #pragma kernel lines.