VLSM Subnets - Destination Host Unreachable

Question:

I started a CCNA class Cisco 2951 price a couple weeks ago and we're using PacketTracer 5.3 to build a basic network.  I'm not quite sure what I'm doing wrong though - I cant get hosts on one subnet to ping hosts in another subnet.  My Show IP Route command shows all the direct connections between the routers. Ran router rip ver 2. Can someone take a look please and let me know why my routers are not talking to each other and why I'm getting "destination host unreachable"?  Maybe just a push in the direction of what I should be looking for?

I'd ask my instructor, but my next class isnt until Saturday and I think I'll go nuts trying to figure out why its not working before then :-).  i'm sure its something small that I'm missing. I attached my saved packet tracer file if anyone wants to take a look.  Any help would be appreciated!

Quick info just in case

PERTH (required 60 hosts) 192.168.10.0/26

KUALA (required 28 hosts) 192.168.10.64/27

SYDNEY (required 12 hosts) 192.168.10.96/28

SINGAPORE (required 12 hosts) 192.168.10.112/28

If anyone is willing to help out and needs more info from me, I'd be happy to provide it.

Answer:

It looks like you have missed the network command under rip configuration. Please apply below configurations all routers.

router rip

version 2

network 192.168.10.0

no Cisco 2901-SEC auto-summary