ROS path relocation error

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Hello all,

I recently moved my main ros directory and now I cannot start executables like roslaunch, rosmake, or rosdep. I had made sure to edit my setup.sh file so I'm very confused about what's gone wrong. Details:

When I first installed Diamondback, roscd would take me to /opt/ros/diamondback/ros. Everything worked fine, but I foudn it just a bit annoying so I moved the whole diamondback directory to /home/khiya/ and changed the environment variables in setup.sh (located in the diamondback directory) accordingly. roscd now takes me straight to /home/khiya/diamondback/ros, but when I tried running any executables, such as roslaunch (kinda crucial, I know) I got this error:

     :~/diamondback/ros$ roscore
        Traceback (most recent call last):
          File "/home/khiya/diamondback/ros/bin/roscore", line 34, in <module>
            from ros import roslaunch
          File "/home/khiya/diamondback/ros/core/roslib/src/ros/__init__.py", line 56, in __getattr__
            raise ImportError("Cannot import module '%s': \n%s"%(name, str(e)))
        ImportError: Cannot import module 'roslaunch': 
        Cannot locate installation of package roslaunch: 
    /home/khiya/diamondback/ros/bin/rospack: error while loading shared libraries: 
librospack.so: cannot open shared object file: No such file or directory. 
ROS_ROOT[/home/khiya/diamondback/ros] 
ROS_PACKAGE_PATH[/home/khiya/sandbox/hrl_rfid:/home/khiya/ros_tutorials:
/home/khiya/diamondback/stacks]

(The last 5 lines are one continuous line, I just chopped it up for easier reading, in case that's important). The error seems to be saying that the directory /home/khiya/diamondback/ros/bin doesn't contain any of those important executables, but I can cd there and see that they're there. Do I need to tweak something in librospack.so?

Thanks very much,

Khiya