Including the libray project into my project for the facebook layout

[PKanyerezi]

Am trying to implement the facebook layout as it has been done in the sample app.
but am failing to import the library project.

is this code also needed for that part.There is no such file like signing.properties.

// Extract signing info into a properties file
def props = new Properties()
props.load(new FileInputStream(project.file("signing.properties")))

android.signingConfigs.release.storeFile project.file(props.keyStore)
android.signingConfigs.release.storePassword props.keyStorePassword
android.signingConfigs.release.keyAlias props.keyAlias
android.signingConfigs.release.keyPassword props.keyAliasPassword