debian 7 安装 hhvm 失败 Google 无果，大神我需要你！

看别人搞hhvm好像很牛逼的样子，经不住诱惑把网站备份了直接重装系统。
一开始就受挫，对linux不了解，google了一下午无果，结果崩溃了，彻底被打败！
debian 7 安装出错，哪位大神帮忙看看，THS
root@xxx:~# sudo apt-get install lighttpd mysql-server hhvm
Reading package lists… Done
Building dependency tree
Reading state information… Done
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:
hhvm : Depends: libboost-filesystem1.49.0 but it is not installable
Depends: libboost-program-options1.49.0 but it is not installable
Depends: libboost-system1.49.0 but it is not installable
Depends: libboost-regex1.49.0 but it is not installable
Depends: libicu48 but it is not installable
Depends: libmemcached10 but it is not installable
Depends: libmysqlclient18 but it is not installable
Depends: libp11-kit0 but it is not installable
Depends: libssl1.0.0 but it is not installable
Depends: libtinfo5 but it is not installable
Depends: libjemalloc1 (>= 3.0.0) but it is not installable
Depends: libcurl3 (>= 7.26.0) but it is not going to be installed
Depends: libboost-thread1.49.0 but it is not installable
Depends: libmagickwand5 but it is not installable
Depends: libevent-2.0-5 but it is not installable
E: Broken packages