Error while opening the dependency checker tools

Hey all,
I am trying to use the Part 1 Hands on Labs. I opened up the dependency checker tools and used them.
Then, I got the following error: If I want to use IIS to configure https: "This dependency could not be verified. Install components above this one first"

Dependency Checker
This could not be verified.Install components above this
one first.
OK
Do you know what could be wrong? I would really appreciate any advice you may have.
Thanks in advance.
