Build error referencing build.xml and proguard file: “null returned: 1”

Question

While building my PhoneGap app (with the Facebook SDK plugin installed), I encountered this error:

BUILD FAILED C:\\adt-bundle-windows-x86_64-201305

Answer 1

In order to determine if the problem comes from your development environment or from a mistake in the project i recommend everybody to try to create a new project from the cordova CLI.

• Open terminal
• Type cordova create foo; cd foo;
• Type cordova platform add android
• Type cordova build

Does it works? So the problem is on your project configuration. This was my mistake: In order to add icons to the application I've create a folder called android inside `foo/plataforms/android/res/{android/icon*.png}

The correct way to add icons is to create the folder res in root of the project foo/{res/android/icon*.png}

And then, add this files into the configuration file as follows:

<platform name="android">
              <icon src="res/android/icon@ldpi.png" density="ldpi" />
              <icon src="res/android/icon@mdpi.png" density="mdpi" />
              <icon src="res/android/icon@hdpi.png" density="hdpi" />
              <icon src="res/android/icon@xhdpi.png" density="xhdpi" />
     </platform>