The apk must be signed with at least one certificate in common with the previous version
<p>I get this error when I attempt to publish an update to an app on the market. I'm using the same keystore and the same key as the previous update I published. I've no idea what to do. There are no errors or issues when signing or zipaligning.</p>

<p>I've only ever had 2 keystores and 2 keys on this computer. I've tried one, then the other, and both at once. The market never accepts it as being signed with same key.</p>

<p>Help!</p>
