Your project contains error(s), please fix it before running it

Question

I am developing a simple Android application. But when I run Eclipse, it shows the following error:

Your project contains error(s), please fix it befo

Answer 1

This is happened to me. After format of my system,
When i import project it shows same error

remove first debug.keystore file then goto -

Project -> Project properties -> select library -> remove -> add again libraries.

It's working for me......