MongoDB GPG Key
I m Generated GPG Key form Mongodb site ..Still i m facing problem after sudo apt-get update command .

i got following error 




W: GPG error: http://packages.medibuntu.org hardy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2EBC26B60C5A2783
W: GPG error: http://security.ubuntu.com natty-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5


plz suggest me for that..

thank u .. 
MongoDB GPG Key
===

I m Generated GPG Key form Mongodb site ..Still i m facing problem after sudo apt-get update command .

i got following error 




W: GPG error: http://packages.medibuntu.org hardy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2EBC26B60C5A2783
W: GPG error: http://security.ubuntu.com natty-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5


plz suggest me for that..

thank u .. 