This is affecting me trying to update the debian-multimedia package in Ubuntu. Running 'make dist" in the debian-multimedia package worked in December 2018. Now it fails with:
apt.cache.FetchFailedException: W:GPG error: http://ftp.debian.org/debian testing InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7638D0442B90D010 NO_PUBKEY 04EE7237B7D453EC, E:The repository 'http://ftp.debian.org/debian testing InRelease' is not signed.
This is affecting me trying to update the debian-multimedia package in Ubuntu. Running 'make dist" in the debian-multimedia package worked in December 2018. Now it fails with:
apt.cache. FetchFailedExce ption: W:GPG error: http:// ftp.debian. org/debian testing InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7638D0442B90D010 NO_PUBKEY 04EE7237B7D453EC, E:The repository 'http:// ftp.debian. org/debian testing InRelease' is not signed.