About deleting projects
Note: By design, you cannot delete a project in which a delivery or a rebase
operation has been performed or from which a delivery to another project has
been performed.
You can delete a project only if it does not contain any streams. When you create a project with the Project Creation Wizard, the wizard also creates an integration stream. Therefore, you can delete a project only if you created it with the cleartool mkproject command, or if you first delete the integration stream.
For more information about removing projects, see the rmproject reference page.