CCS/TMS320C6455: I am converting a project from CCS v3.3 to v7.4 and am having trouble with a generated .cmd file. Do .tcf files still work in CCS v7.4?

Part Number:TMS320C6455

Tool/software: Code Composer Studio

I am converting this project and when I build a .cmd file is generated that produces build errors. We believe a .tcf file may be able to help but simply adding the .tcf file does not work. Is there some other file type that replaces .tcf and can we convert our current .tcf file to it? Do we need to do something else instead?