Command to delete branches of Clearcase element with “0” versions

Question

What is the command in Clearcase to delete the branches of an element in which it is not modified (Element\'s version in that branch is \"0\") ?

Answer 1

rmver won't work.

/home/ccadmin $ cleartool rmver -force ./VaREngine/Makefile@@/main/nz_mig/nz_relOne/0 cleartool: Error: Cannot delete version zero without deleting branch: "./VaREngine/Makefile".