When I am installing google-stable.deb on ubuntu 14.04, the system tell me a dependency of libappindicator1 is not met. And before I update the source list, I can‘t find this from the cache.

When I can find it, another dependency is not met. libapp depends on libindicator7. When I try to install libindicator7, it failed. Finally, I install them together. And I succeed. Why?

For .deb file:

sudo dpkg -i/-r