[news.eclipse.technology.imp] Cannot find a solution satisfying the foll

[pingala@xxxxxxxxx (Tommaso D\'Argenio)]

Hi All,

i hope somebody could help me out with this problem.

i'm trying to install IMP in order to use AXDT but keep getting the 
message in the subject as error and couldn't cotinue the installation:
Cannot find a solution satisfying the following requirements 
org.eclipse.ltk.core.refactoring [3.4.2.r342_v20081028-0800].

i'm using Eclipse:
Version: 3.4.2
Build id: M20090211-1700

i'm trying to install IMP from the update site via Software Update 
functionality in Eclipse
i've also installed LPG as i've seen a note in the installation page about 
having LPG preinstalled before installing IMP.

any help is much appreciated.

thanks
Tommaso.