I recently update Ubuntu 18.04 system. Server responded can't connect to mysql Here is the error /var/lib/dpkg/info/mysql-server-5.7.postinst: line 191: /usr/share/mysql-common/configure-symlinks: No such file or directory dpkg: error processing package mysql-server-5.7 (--configure): installed mysql-server-5.7 package post-installation script subprocess returned error exit status 127 Errors were encountered while processing: mysql-server-5.7 E: Sub-process /usr/bin/dpkg returned an error code (1)