Eclipse indexing not working

Question

I am using CDT in Eclipse 3.5.2 Galileo in Ubuntu.

My eclipse's indexer doesn't work at times. By that I mean when I ctrl click a function it says Could not find symbol in index. Also, F3 button click results in the same error message. Actually most of the places it is not working and works in very few places.

I have seen some other versions of Eclipse where under File menu a menu item listed for Indexing. Like File->Indexer->Rebuild.... But in my File menu there is no such menu item for the Indexer.

Will the only way be to use some other release of Eclipse or am missing something? Any pointers regarding this would be helpful.

Answer 1

In my case nothing has worked and at last I did the following:

 1) Close the project  2) Delete the project(do not check from disk option)  3) create new project with existing code(use the deleted project path)  4) Successfully indexed my c++ code 

Answer 2

To add paths containing code to parse, follow these steps :
1. Right click on the project
2. Select Properties
3. Go to C/C++ General
4. Go to Path and Symbols
5. If the paths are missing, add paths.

To re-parse the code follow these steps :
1. Right click on the project
2. Select Index
3. Rebuild

If this doesn't work, then you are out of luck. c++ is very difficult language to parse.