How can i Solve this

[Mohan1289]

When i ran the command "sudo apt-get-update"

it is showing the following warning.. what does that mean?? how can i solve that error??


W: GPG error: http://www.duinsoft.nl debs Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E18CE6625CB26B26

[Bucky Ball]

Please help yourself and use descriptive thread titles.

Open Update Manager and click Settings at bottom left. Click the Other Software tab. Look for an entry containing:

http://www.duinsoft.nl

Untick. Close. Try again.

[drpjkurian]

Hi enter this in terminal

sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com E18CE6625CB26B26

Then update the system.

[josephmills]

duinsoft.nl is repo for java ?

looks like the key is

sudo apt-key adv --keyserver keys.gnupg.net --recv-keys 5CB26B26

source:
http://www.duinsoft.nl/packages.php

[Mohan1289]

Hi enter this in terminal

sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com E18CE6625CB26B26

Then update the system.

This is the output i got when i executed

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.BiYvKHEzRZ --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --recv-key --keyserver keyserver.ubuntu.com E18CE6625CB26B26
gpg: requesting key 5CB26B26 from hkp server keyserver.ubuntu.com
?: keyserver.ubuntu.com: Connection timed out
gpgkeys: HTTP fetch error 7: couldn't connect: Connection timed out
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0

[Mohan1289]

duinsoft.nl is repo for java ?

looks like the key is

sudo apt-key adv --keyserver keys.gnupg.net --recv-keys 5CB26B26

source:
http://www.duinsoft.nl/packages.php

when i did as you told

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.GJa10MAv5F --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keys.gnupg.net --recv-keys 5CB26B26
gpg: requesting key 5CB26B26 from hkp server keys.gnupg.net
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error

It's showing this why??

[Bucky Ball]

I still vote for disabling the repo for now. See post #2. Could be a problem their end. Wonder if anyone else is having problems with the same key?

[oldos2er]

I just tried it and it worked fine for me.

[Bucky Ball]

I just tried it and it worked fine for me.

There you go. Rules that out my idea the repo might be having problem and gives a clearer picture where to dig. Thanks oldos2er.

[Mohan1289]

There you go. Rules that out my idea the repo might be having problem and gives a clearer picture where to dig. Thanks oldos2er.

Thank you i will try