This was asked earlier but marked as answered when it wasn't. Please forgive it being asked again since I'd appreciate a specific answer to the question.
I have a Segger I'd like to use as the debug probe in the LPCxpresso IDE. That's preferable to just using a generic Eclipse as I want the LPCware support as well. Segger's website says this works and offers detailed instructions. NXP LPCXpresso PRO Edition | SEGGER - The Embedded Experts says to set up the "GNU ARM Eclipse Plugin. " When yo chase that link it tells you to use the "Install software" option and points you to a stash either online or a downloadable copy of ilg.gnumcueclipse.repository-4.1.1-201707111115.zip. When you go to install the J-link debugger out of that, it reports that it needs 15 items, and then fails saying "Cannot complete the install because one or more required items could not be found."
One suspicious thing is that the original link from Segger has the subject "LPCXpresso PRO". Does that mean you need the Pro version of the IDE to do this? I've asked Segger's tech support and don't have an answer yet.
I have tried Google and emailing the tech support for both NXP and Segger. I have spoken with a sales engineer at Segger who didn't know the answer. I can't believe that I'm the only one out here trying to do this - having a detailed answer will probably help more than a few people.