I'm trying to install and update my PHP modules, but I only get this error. Any ideas?
Installing package(s) with command apt-get -y install php5-mysql ..
Reading package lists... Building dependency tree... Reading state information... The following extra packages will be installed: libapache2-mod-php5 php5-cgi php5-cli php5-common php5-curl php5-gd php5-mcrypt php5-xmlrpc The following packages will be upgraded: libapache2-mod-php5 php5-cgi php5-cli php5-common php5-curl php5-gd php5-mcrypt php5-mysql php5-xmlrpc 9 upgraded, 0 newly installed, 0 to remove and 22 not upgraded. Need to get 10.4MB of archives. After this operation, 4096B of additional disk space will be used. WARNING: The following packages cannot be authenticated! php5-cli php5-cgi php5-mysql php5-mcrypt php5-curl php5-xmlrpc php5-gd libapache2-mod-php5 php5-common E: There are problems and -y was used without --force-yes
.. install failed!