Here's the error:
---
2014-12-23 15:43:32,545 DEBUG [o.a.c.e.o.NetworkOrchestrator] 
(Work-Job-Executor-82:ctx-32b20d5c job-214/job-215 ctx-d35f12fd) Asking 
ExternalGuestNetworkGuru to implement 
Ntwk[b39d161a-5fd7-4bbc-aed2-092ff486a173|Guest|8]
2014-12-23 15:43:32,546 ERROR [o.a.c.e.o.NetworkOrchestrator] 
(Work-Job-Executor-82:ctx-32b20d5c job-214/job-215 ctx-d35f12fd) Unable to 
transition to a new state from Shutdown via ImplementNetwork
2014-12-23 15:43:32,546 DEBUG [o.a.c.e.o.NetworkOrchestrator] 
(Work-Job-Executor-82:ctx-32b20d5c job-214/job-215 ctx-d35f12fd) Cleaning up 
because we're unable to implement the network 
Ntwk[b39d161a-5fd7-4bbc-aed2-092ff486a173|Guest|8]
---
2014-12-23 15:43:32,661 ERROR [c.c.v.VirtualMachineManagerImpl] 
(Work-Job-Executor-82:ctx-32b20d5c job-214/job-215 ctx-d35f12fd) Failed to 
start instance VM[User|i-2-34-VM]
java.lang.NullPointerException
        at 
com.cloud.network.Networks$BroadcastDomainType.getSchemeValue(Networks.java:159)
        at 
com.cloud.network.Networks$BroadcastDomainType.getValue(Networks.java:213)
        at 
com.cloud.network.guru.GuestNetworkGuru.shutdown(GuestNetworkGuru.java:422)
---

Looks like the broadcast domain isn't set correctly or isn't set at all. Check 
the entry for the particular network in the networks table and look up the 
column "broadcast_domain_type" and " broadcast_uri". What values do these have?

-----Original Message-----
From: Niki Sfika [mailto:sf...@ceid.upatras.gr] 
Sent: Tuesday, December 23, 2014 9:25 AM
To: users@cloudstack.apache.org
Subject: Cannot create instance due to java.lang.RuntimeException

Hi,

I have a problem during instance creation. I have for host nic0 with an ip
192.168.x.x and nic1 has an ip with internet access.For cloudstack server I
have nic0 with an ip in the same subnet 192.168.x.x and nic1 has an ip with
internet access too. All agents for system VMs are up and I try to create an
instance but I get this error in the cloudstack UI:

"Job failed due to exception Resource [Host:1] is unreachable: Host 1:
Unable to start instance due to null"

Can anyone help me please?

here you can find the logs.

https://www.dropbox.com/s/fphd5cjx42njlzc/cloudstack_logs?dl=0



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