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

I had the same issue, I solved it this way:

Go to the framework directory in the project, and type these commands to build the jar file (you will need to have ant installed to generate the jar file, but it should be on your system already):

android update project -p . -t android-23

ant jar

So just make sure what type of android you have because you may have tried android-19.