CPAN Terminal> u DateTime

[MSG] No '/.cpanplus/custom-sources' dir, skipping custom sources
[MSG] No '/.cpanplus/custom-sources' dir, skipping custom sources
[MSG] No '/.cpanplus/custom-sources' dir, skipping custom sources

This will uninstall the following modules:
    DateTime

Note that if you installed them via a package manager, you probably
should use the same package manager to uninstall them

                                                                                                                                    
Are you sure you want to continue? [y/N]: y
Uninstalling 'DateTime'
[ERROR] Module 'DateTime' is not installed, so cannot uninstall