Webapp is not able to find coder.inte​rnal.index​Minus

Hi,

I have created a matlab webapp that uses coder.internal.indexMinus. App works fine in app designer, but after I compile it and try to run it on developer Matlab wep app server I get an error that states "Unable to resolve the name coder.internal.indexMinus.". I presume this is due to Matlab not being able to find the function because it's not on the path? Is it some kind of a bug in webapp or is it fixable some how?