Require Gradle project from another directory

The simplest way is to make MyProject a multi project with the Logger project as a subproject.

settings.gradle in MyProject directory:

include ":logger"
project(":logger").projectDir = file("../logger")

In the build.gradle of MyProject you can now reference this lib as a project:

dependencies {
     compile 'com.android.support:gridlayout-v7:18.0.0'
     compile 'com.android.support:appcompat-v7:18.0.0'
     compile project(":logger")
}

Android Studio 2.2.3:

Add to settings.gradle.

include ':app', ':new_lib'
project(':new_lib').projectDir = new File('../new_lib/app')

• The path must be relative from the root of the project you're working on.
• The module you're referencing must have a reference to it's "app" directory.

Then edit your Project Structure | Modules to setup dependencies.

Try adding the dependency to the global "dependencies" section, not the "android > dependencies". During development, the "android" configuration is used, but not to package the runtime.

dependencies {
    compile 'com.android.support:gridlayout-v7:18.0.0'
    compile 'com.android.support:appcompat-v7:18.0.0'
    compile files("../Logger")
}

It may also be worthwhile to look into setting up a multi-project gradle configuration, with a build.gradle and settings.gradle in the shared parent directory like here: http://www.gradle.org/docs/current/userguide/multi_project_builds.html