[Dave Jackson]

– I would try opening the CS6 files in CC2015 on the machine you’re moving to and simply resaving them to the newer AI version [make them duplicates just in case]. Then open AE and attempt to relink there.

– You could also try replace footage if that doesn’t work – with renamed AI files (since there could be some weirdness associated with the names now in AE)

[Dave Jackson]

I think you’re after something like this:

sliderPos = thisComp.layer(“control layer“).effect(“slider name“)(“Slider");
framesToTime((Math.round(sliderPos)))

‘sliderPos’ is just a variable name
‘Control layer’ is the layer that the expression control slider is located on – so that would be in the parent comp
‘slider name’ is what you’ve named the slider

[Dave Jackson]

If you’re on the very latest version of Illustrator [2015.3] it is not playing very nicely with some other programs. So if the files were created in that version and the system you’re moving to is 15 but not 15.3 that could be the problem?

[Dave Jackson]

Legend, thanks Dan

[Dave Jackson]

I know this is years later and its annoying to keep adding to an old thread but it’s along the same lines:

How would you target a selected property to add the expression to, in order to make it more versatile?

this works:
app.project.activeItem.layer(1).property(“Position”).expression = “wiggle(2,2)”;

but this would be more useful, and doesn’t:
app.project.activeItem.selectedLayers.property.expression = “wiggle(2,2)”;

cheers