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

You may also want to make sure your local.properties has the path to your sdk: sdk.dir=/path/to/adt/sdk