Destination Host Unreachable issue in Packet Tracer

[user110]

I'm a first-year college student, in my system When I try to ping PCs in other subnetworks it says 'destination host unreachable'. 

I tried to find the errors but idk what to do to fix this please help!

[Georg Pauwen]

What are the passwords for the devices ?

[Georg Pauwen]

You have no routing (static or dynamic) configured on your routers. Configure the below on all routers:

router eigrp 1

network 0.0.0.0

no auto-summary