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I try to submit my app with the command in the title, but the build failed:

Error message: W: GPG error: precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY *

* is my key (don't know it is safe to share it)

If i run this command:

sudo apt-key adv --keyserver --recv-keys ******

It is said my key isn't change (so don't need to add it again).

Any idea?

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It's safe to share 8-digit key IDs. Please share the content or output of the following commands/files to better help us troubleshoot your problem (instructions in this answer): command(s): gpg --list-keys – izx Jul 5 '12 at 16:12
up vote 1 down vote accepted

You need to have your public key attached to your Launchpad profile.

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