Eclipse Juno with CDT Doesn't Add Built-in Include Directories

Question

Since I upgraded from Eclipse Indigo to Juno (on Ubuntu 12.04), I\'ve been having the problem where it shows \"unresolved inclusion\" errors for standard libraries (e.g. next to

Answer 1

FWIW:

I found that after importing a project from another computer, I was not getting any thing showing up under the "Includes" section of my project in the Project Explorer. To fix this, I needed to delete the folder /workspace/project/.settings/. For me it only had one file (language.settings.xml).

Then everything was back to normal.