title: can't sign android app lite version with same private key
body: <p>i just signed my paid app and now i want to sign a lite version of it with the same private key. my problem now is that, am receiving this error: </p>
  
  <p>jarsigner: unable to open jar file. </p>
  
  <p>do i have to create another keystore for it? or is the problem coming from the fact that i am saving it as a different file name? what can i do? Thank you</p>