Error: Couldn't turn result into numeric value

[MARIANCE]

Hi, I'm using a simple expression and I'm getting this error.

This is the code:

var x = value[0];
var a = thisComp.height/2;
var f = .5;
var y = Math.sin(time*2*Math.Pi*f)*a;

[x,y]

I watched a YouTube tutorial that used this same code (without using var) and it seemed to work, but not to me.

[OussK · Accepted solution]

you should right PI instead of Pi so try this:

var x = value[0];

var a = thisComp.height/2;

var f = .5;

var y = Math.sin(time*2*Math.PI*f)*a;

[x,y]

[MARIANCE]

Thanks, it worked!

Why did it say it was error in line 1 and maked x instead telling me I misspelled PI? Weird...

[OussK]

Yes, the error system in AE still not smart enough to fix the error