[news.eclipse.modeling.mdt.ocl] OCLConsole Saving Error: The 'no duplica

[Richard Catlin <richard.m.catlin@xxxxxxxxx>]

I am getting this error when I try to save an OCL expression to an xmi file.

public void setOCLExpression(OCLExpression<Object> expr) {
// add my expression as the first root, because I already contain
// variables and EPackages defining dynamically-generated types
	getContents().add(0, expr);
}

Exception:
"Error Saving OCL Expression, The 'no duplicates' constraint is violated"

Any help is appreciated.

Regards,
Richard Catlin