Did you edit the AndroidManifest.xml
directly in the .apk
file? If so, that won’t work.
Every Android .apk
needs to be signed if it is going to be installed on a phone, even if you’re not installing through the Market. The development tools work round this by signing with a development certificate but the .apk
is still signed.
One use of this is so a device can tell if an .apk
is a valid upgrade for an installed application, since if it is the Certificates will be the same.
So if you make any changes to your app at all you’ll need to rebuild the .apk
so it gets signed properly.
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