  		for (i = 0; i < IConstraintLayout(target).constraintColumns.length; i++)
  		{
  			var col:ConstraintColumn = IConstraintLayout(target).constraintColumns[i];
- 			if (col.mx_internal::contentSize)
+ 			if (col.contentSize)
  			{
  				if (col.id == leftBoundary)
  				{

				cc = cols[i];
				if (!isNaN(cc.percentWidth))
					percentageSize.push(cc);
				else if (!isNaN(cc.width) && !cc.mx_internal::contentSize)
					fixedSize.push(cc);
				else 
				{
					contentSize.push(cc);
					cc.mx_internal::contentSize = true;
				}
			}
			//fixed size columns 

				{
					percentageSize.push(cr);
				}
				else if (!isNaN(cr.height) && !cr.contentSize)
					fixedSize.push(cr);
				else
				{
					contentSize.push(cr);
					cr.contentSize = true;
				}
			}
			//fixed size rows 
