Android requires compiler compliance level

Eclipse IDE for Java Developers
Version: Indigo Release
Build id: 20110615-0604


ERROR :
Android requires compiler compliance level 5.0. Please fix project properties

[2011-08-04 23:56:54 - LocalPassport] Android requires compiler compliance level 5.0 or 6.0. Found '1.4' instead. Please use Android Tools > Fix Project Properties.

Problem solved :

Right click on your 
project->properties->java compiler, 
modify the version to 1.6