Reasons for dependency between build-essential and g ++ installed under ubnutanu

Enter sudoapt-getinstallbuild-essential with the following error: Readingpackagelists... DoneBuildingdependencytreeReadingstateinformation... DoneSomepackagescouldnotbeinstalled. thismayagmea

Enter sudo apt-get install build-essential under Ubnutu

The following error occurs:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages cocould not be installed. This may mean that you have
Requested an impossible situation or if you are using the unstable
Distribution that some required packages have not yet been created
Or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
The package is simply not installable and a bug report against
That package shoshould be filed.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
Build-essential: Depends: g ++ (> =. 1.1) but it is not going to be installed
E: Broken packages

Version: Ubuntu 7.04

Cause:
An error occurred while updating the source!