After installing ROS in Ubuntu system, the apt-get update
command reports an error:
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://packages.ros.org/ros/ubuntu bionic InRelease: The following signatures were invalid: EXPKEYSIG F42ED6FBAB17C654 Open Robotics <[email protected]>
W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/InRelease Could not resolve 'dl.google.com'
W: Failed to fetch http://packages.ros.org/ros/ubuntu/dists/bionic/InRelease The following signatures were invalid: EXPKEYSIG F42ED6FBAB17C654 Open Robotics <[email protected]>
W: Failed to fetch http://packages.microsoft.com/repos/code/dists/stable/InRelease Could not resolve 'packages.microsoft.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
Solution:
we have to re-add the mentioned GPG key to the system by using command below
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F42ED6FBAB17C654
Read More:
- An error occurred during the signature verification in the ROS function pack warehouse
- [Solved] Some index files failed to download.They have been ignored, or old ones used instead
- ros2 apt-get install error: E: Failed to fetch http://packages.ros.org…
- How to Solve Ubuntu “Failed to fetch” Error
- Ubuntu 20.04 Desktop Install sublime-text Error: “Certificate verification failed”
- Linux apt-get update Error: Error in `appstreamcli‘: double free or corruption … Aborted (core dumped)
- [Solved] ffmpeg Error: fatal error: zlib.h: Not having that file or directory
- [Solved] Ubuntu Update source error: Certificate verification failed: The certificate is NOT trusted.
- Ubuntu Server: How to Install Chrome
- [Solved] Git Clone Failed Error: 4069 bytes of body are still expected
- How to Download APK Files from Google Play Store
- [Solved] yum error: rpmdb: BDB0113 Thread/process
- How to Fix Linux sub process /usr/bin/dpkg returned an error code (1)
- [Solved] wsl Error: WslRegisterDistribution failed with error: 0x800701bc
- How to Solve Yum Error: db5 error(30973)
- [Solved] Linux – error: cannot open Packages database in /var/lib/rpm
- [Solved] error: rpmdb: BDB0113 Thread/process
- [Solved] YUM Error: error: rpmdb: BDB0113 Thread/process 11498/140107732375616 failed
- Petalinux-boot –jtag error [How to Solve]
- Solutions to errors in installing xunsearch engine in centos8.0