Getting error while installing deb file dpkg frontend is locked by another process

Question

I am trying to install a deb file using:

$ dpkg -I <filename>

But I am getting the following error:

dpkg frontend is locked by another process

I tried

lsof /var/lib/dpkg/lock

But it didn’t work. Please help

Answer 1

You can try to remove the lock. Try running this command:

rm /var/lib/dpkg/lock

Comments

rm: cannot remove '/var/lib/dpkg/lock': No such file or directory

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I think there's some other process that has locked this. Make sure you are not using any other packages like apt, apt-get or aptitude and then try. If it still doesn't work, share the complete error log.