I just did a fresh install of ModX 2.1.1 on my local machine and when I click on ’system settings’ ’package management’ or ’lexicon management’ under the system menu, the page is blank and all I see is the resource tree. Any ideas?
I had the same problem, I cleared the cached, logged out and back in, and it was back.
I think Windows (if that’s what you’re using) is kind of cranky about unlink(). It’s not a bad idea to manually delete the files in the core/cache directory when things get weird. Clearing your browser cache and cookies is always a good thing to do when doing new install of MODX or an upgrade.