Maybe the signing keystore generator in Eclipse, the upload feature in
the Market, and the documentation should have some helpful reminders
added that let people know backing it up is a good idea.

On Dec 12, 10:11 am, niko20 <[email protected]> wrote:
> BACK UP YOUR KEYSTORE FILE!!!!!!!!
>
> BACK UP YOUR KEYSTORE FILE!!!!!!!
>
> I have about six copies of my keystore, I don't understand why this
> keeps happening to people. You should do this right away as soon as
> you release to the market.
>
> -niko
>
> On Dec 11, 9:16 am, Justin Anderson <[email protected]> wrote:
>
> > *> I'd like to upload a new version of my droidChat to the android market> 
> > but when i press update, it sais i've signed the apk with a diferent
> > > key than the one is in the market.
> > > I've lost the other keystore because i've changed the PC and i can't
> > > access to the previous one.
>
> > *
> > I believe I have read somewhere that once you sign an application and
> > publish it with a specific keystore you MUST use the same keystore for other
> > updates.  Unfortunately I think the only option is to release the update as
> > a new application (put a note in the old one telling customers to get the
> > new one instead).
>
> > *> Is there any way to extract the previous key from the old apk and then
>
> > > sign the new one with that key? What can I do?*
>
> > I should certainly hope not!  That would throw security right out the
> > window...
>
> > ----------------------------------------------------------------------
> > There are only 10 types of people in the world...
> > Those who know binary and those who don't.
> > ----------------------------------------------------------------------
>
> > On Fri, Dec 11, 2009 at 5:07 AM, [^MiSaTo^] <[email protected]> wrote:
> > > Hi all,
>
> > > I'd like to upload a new version of my droidChat to the android market
> > > but when i press update, it sais i've signed the apk with a diferent
> > > key than the one is in the market.
> > > I've lost the other keystore because i've changed the PC and i can't
> > > access to the previous one.
> > > I've also asked google help with no response about this issue.
>
> > > Is there any way to extract the previous key from the old apk and then
> > > sign the new one with that key? What can I do?
>
> > > Thanks in advance
>
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