I\'m using Eclipse Helios on Ubuntu 10.04, and I\'m trying to install CDT plugin on it. I download it from here here.
And then I go to Install New Software<
I faced the same problem. I have Eclipse Indigo and Eclipse Luna on Ubuntu. I tried many solutions, but none worked. Here's how you can try :) Try it in order :)
After 1,2, 3, and 4, I tried changing paths, and other stuff, but nothing worked. In the end, I noticed that it mentioned Debug Active was not configured. So when I changed it to Release Active, it worked. Do note that change in environment and path is not required.