Having trouble in Routers about OSPF in Packet Tracer

[Josh99989768]

Hi Guys, I was trying to apply OSPF to all of my 5 routers in the project. However, Router 0 and Router 2 couldn't connect as it was saying that OSPF is not enabled on the interface between Router 0 to Router 2. I checked every configuration and seems like I did all the things correctly. Would you all please take a look at it ? 

[MHM Cisco World]

I see it this router inside the cloud 
R2 is connect to R0 with 
200.100.100.14 so the subnet is 200.100.100.12 and available IP is 
.13 and .14
so one side you use .14 other side need to be .13 not .16

The network command under ospf must be with wildcard 0.0.0.30 not 0.0.0.15

[Flavio Miranda]

Hi

 The problem was related to the network statement

network 200.100.100.0 0.0.0.15 area 0

As you are using 255.255.255.252 the network statement should be

network 200.100.100.16   0.0.0.3    area 0

.16 is the network as you are using .17 and .18 for interface and the wild card mask is 3 for /30

I did not check the whole network but if you have any more problem just let us know