There are a number of messages from Validate that tell you what is "wrong" but don't tell you what object is wrong. see screen snapshot

For example: You have 1 unmapped table ..... Expand for options

My 2 choices perform an reverse engineer action, but I don't know what I am reverse engineering if I do this.

Seems to me the message or action should tell me what it is going to act on.

When you click the perform button it opens a window with those tables unchecked for you to pick and reverse engineer.

OK, fair enough. I wasn't brave enough to click perform, since I wasn't sure I wanted to perform the reverse engineering and didn't know that perform would give me a chance to back out.

arschr wrote:

OK, fair enough. I wasn't brave enough to click perform, since I wasn't sure I wanted to perform the reverse engineering and didn't know that perform would give me a chance to back out.

Yes, it's just a warning, not an error. So it's up to you to reverse engineer those tables if you want them to be in your Entity Model

It might indeed be a little unclear. We opted for the single option, and not a lot of options, one per element type.