ROS indigo installation error
hi i am trying to install ROS indigo but when i am trying to set up my keys
sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net --recv-key 0xB01FA116
its showing the following error in terminal window
gpg: requesting key B01FA116 from hkp server pool.sks-keyservers.net
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error