If the user, by mistake, chooses a wrong Git reference or Context dir in "Git Options" of "Add Components" step, the user will not notice immediately. It is possible to proceed to "Configure components" and here it will appear "Runtime not detected". This could let the user spend some time trying to figure out what is going on (at least it happened to me).

I would like to see "Git options" be validated and only proceed to "Configure components" if they are correct.

Steps to reproduce:

• In "Add Components" step, choose a wrong Git reference or Context dir.
• Proceed to "Configure components" and see "Runtime not detected".