mv /mnt/usb/TimeTrex_Community_Edition.deb /var/cache/apt/archives/TimeTrex_Community_Edition.deb ls -al /var/cache/apt/archives/ total 75540 drwxr-xr-x 3 root root 4096 Aug 24 23:05 . drwxr-xr-x 3 root root 4096 Aug 24 22:51 .. -rwxr-xr-x 1 root root 11565856 Aug 24 23:05 TimeTrex_Community_Edition.deb -rw-r--r-- 1 root root 1856 Aug 16 20:13 linux-generic_4.15.0.33.35_amd64.deb -rw-r--r-- 1 root root 1103320 Aug 16 20:13 linux-headers-4.15.0-33-generic_4.15.0-33.36_amd64.deb -rw-r--r-- 1 root root 10982748 Aug 16 20:13 linux-headers-4.15.0-33_4.15.0-33.36_all.deb -rw-r--r-- 1 root root 2440 Aug 16 20:13 linux-headers-generic_4.15.0.33.35_amd64.deb -rw-r--r-- 1 root root 7885584 Aug 16 22:48 linux-image-4.15.0-33-generic_4.15.0-33.36_amd64.deb -rw-r--r-- 1 root root 2468 Aug 16 20:13 linux-image-generic_4.15.0.33.35_amd64.deb -rw-r--r-- 1 root root 13034500 Aug 16 20:13 linux-modules-4.15.0-33-generic_4.15.0-33.36_amd64.deb -rw-r--r-- 1 root root 32740928 Aug 16 20:13 linux-modules-extra-4.15.0-33-generic_4.15.0-33.36_amd64.deb -rw-r----- 1 root root 0 Jul 25 23:04 lock drwx------ 2 _apt root 4096 Aug 24 22:51 partial apt-get install /var/cache/apt/archives/TimeTrex_Community_Edition.deb Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: timetrex-community-edition : Depends: php-gettext but it is not installable Depends: php-imap but it is not installable Depends: php-intl but it is not installable Depends: php-soap but it is not installable Depends: php-zip but it is not installable Depends: php-mcrypt but it is not installable Depends: php-mbstring but it is not installable Depends: php-bcmath but it is not installable Depends: php-redis but it is not installable Depends: php-fpm but it is not installable E: Unable to correct problems, you have held broken packages. apt-get install apache2 libapache2-mod-php php php7.2-cgi php7.2-cli php7.2-pgsql php7.2-pspell php7.2-gd php7.2-gettext php7.2-imap php7.2-intl php7.2-json php7.2-soap php7.2-zip php7.2-curl php7.2-ldap php7.2-xml php7.2-xsl php7.2-mbstring php7.2-bcmath postgresql Reading package lists... Building dependency tree... Reading state information... E: Unable to locate package php7.2-imap E: Couldn't find any package by glob 'php7.2-imap' E: Couldn't find any package by regex 'php7.2-imap' E: Unable to locate package php7.2-intl E: Couldn't find any package by glob 'php7.2-intl' E: Couldn't find any package by regex 'php7.2-intl' E: Unable to locate package php7.2json E: Couldn't find any package by glob 'php7.2json' E: Couldn't find any package by regex 'php7.2json' E: Unable to locate package php7.2-soap E: Couldn't find any package by glob 'php7.2-soap' E: Couldn't find any package by regex 'php7.2-soap' E: Unable to locate package php7.2-zip E: Couldn't find any package by glob 'php7.2-zip' E: Couldn't find any package by regex 'php7.2-zip' E: Unable to locate package php7.2-mbstring E: Couldn't find any package by glob 'php7.2-mbstring' E: Couldn't find any package by regex 'php7.2-mbstring' E: Unable to locate package php7.2-bcmath E: Couldn't find any package by glob 'php7.2-bcmath' E: Couldn't find any package by regex 'php7.2-bcmath'