Please verify the unit scope names settings in the project.
These should be the default values:
Winapi;System.Win;Data.Win;Datasnap.Win;Web.Win;Soap.Win;Xml.Win;Bde;System;Xml;Data;Datasnap;Web;Soap;Vcl;Vcl.Imaging;Vcl.Touch;Vcl.Samples;Vcl.Shell
Please verify the unit scope names settings in the project.
These should be the default values: